What is the rate of change of the linear function that has a graph that passes through (9,2) and (3,-1)?

Answers

Answer 1
Answer:  1/2

=================================================

Explanation:

Your teacher wants you to find the slope

m = slope

m = (y2-y1)/(x2-x1)

m = (-1-2)/(3-9)

m = -3/(-6)

m = 1/2

----------------

Extra info:

We can think of the slope as

slope = rise/run

and furthermore,

rise = change in y = y2-y1run = change in x = x2-x1

Essentially we subtract the corresponding y coordinates together, subtract the x together (in the same order as the y values), then divide the differences.


Related Questions

The number of marbles of different colors stored in a hat is listed below:

4 red marbles
10 green marbles
7 blue marbles
Without looking in the hat, Dan takes out a marble at random. He replaces the marble and then takes out another marble from the hat. What is the probability that Dan takes out a blue marble in both draws?
2/21
1/9
1/2
2/3

Answers

Answer:

The answer would be a 1/9 chance of him picking two blue marbles in a row.

You pick a card at random. 4 5 6 What is P(4)? Simplify your answer and write it as a fraction or whole number.

Answers

Answer:

4/p

Step-by-step explanation:

4/p=4overp

use the table to write a proportion

Answers

Answer:

n = 17

[tex]\frac{n}{85}= \frac{34}{170}[/tex]

Step-by-step explanation:

[tex]\frac{n}{85}= \frac{34}{170}[/tex]

n · 170 = 34 · 85

170y = 2890

170y ÷ 170 = 2890 ÷ 170

y = 17

If DA is a diameter of oz and mZDZC = (2x), find mZCZB.
A. 22°
B. 58°
C. 690
D. 73°

Answers

D. I took the test

Jessica purchased 30 dolls and play trucks for the play school. Each doll costs $5 and each playtruck costs $10. How many dolls
and play trucks did she buy for $200?

Answers

Answer:

16 dolls and 12 trucks

Step-by-step explanation:

simple math


A line passes through points (2,5) and (5, 14). What is the slope of this line?

Answers

We know that:

Slope of a line = change in y coordinate / change in x coordinate

We are given:

First point = (2,5)

Second point = (5, 14)

Calculating the change in y coordinate:

change in y (also represented by Δy) = second y - first y

Δy = 14 - 5

Δy = 9

Calculating the change in x coordinate:

Δx = second x - first x

Δx = 5 - 2

Δx = 3

Slope of the line:

Slope = (Δy) / (Δx)

Slope = 9 / 3                                              [replacing the values]

Slope = 3

Help QUICK PLS
I need answers quick
will mark as brainliest.​

Answers

Answer:

integer

Step-by-step explanation:

the slope looks like it's 4/1 when simplified it's 4. (integer)

Answer:

The slope is the integer 4

Step-by-step explanation:

take the points (-2, -9) (-1, -5) and put them in the formula  y2 - y1 over x2 - x1 and you get m = 4

What is the solution to the inequality -3x - 5 < -20?

Answers

Answer: x>5

Step-by-step explanation: Hope this help :D

solve - 2 1/3 - ( - 5) =
Help me please

Answers

Answer:

7.33

Step-by-step explanation:

I need help finding the answer

Answers

Answer

3 hours 40 mins

3 hours and 40 minutes is your answer or 3:40

Select all of the expressions that are equivalent
to 18x+6.

Answers

Answer:

6(3x+1)

To check

6×3x=18x

6×1=+6

Answer:

1st, 2nd, 5th

Step-by-step explanation:

Please give me BRAINLIEST and THANKS lol

∠10° is complementary to which of the following angles?

Answers

Answer:

80

Step-by-step explanation:

Complementary angles add up to 90.

So 90-10=80.

Answer:

∠80°

Step-by-step explanation:

NOTE: Complementary is when the sum of two angles is equal to 90° degrees

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

I need help on this one fast plz … no links

Answers

Answer:

condensation

Step-by-step explanation:

The water from the ocean evaporates then condenses to form clouds

Water vapor gets into air mainly by evaporation

Samuel pays $825 for rent and utilities each month. His lease lasts for another 4 months. He has $4,750 in his savings account and $245 in his checking account. He is renting a washer and dryer for $37.25 a month and has 7 months left on the rental contract. Samuel has 3 mountain bikes that are valued at a total of $2,090. His gym membership costs $79.95 per month, and he has 6 more payments left. Use this information to find Samuel’s net worth.

Answers

Answer:

10.38293

Step-by-step explanation:

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if there is 21 marbles in a jar how many marbles would it hold of its full​

Answers

Answer:

It would hold 30 marbles in total

Scores on an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation of 8. The developer of the test claims that the population standard deviation of 15. Do these data provide sufficient evidence to significance? Use =0.05α=0.05 . Test by using a confidence interval. Show step1-step3.

Answers

Answer:

Yes, the data provides sufficient evidence at 0.05 level of significance

Step-by-step explanation:

n = 25

s = 8

σ = 15

χ² = (n - 1)s² / σ²

χ² = (25 - 1)*8² / 15²

χ² = (24 * 64) / 225

χ² = 6.827

The critical value at 0.05 ; df = 25 - 1 = 24

12.4012 and 39.3641

Reject H0 if χ² < 12.4012 or if χ² > 39.3641

Since,

χ² < 12.4012 ; We reject H0 ;

Evaluate the expression for a = 10 and b = 12.


a+4(b−3)

Answers

Answer:

46

Step-by-step explanation:

a + 4(b - 3)

Substitute the values for a and b.

10 + 4(12 - 3)

Subtract inside the parenthesis.

10 + 4(9)

Multiply.

10 + 36

Add.

46

Can you solve this for x? 7x-1

Answers

Answer 1/7 hope it helps

Can someone help me

Answers

Answer:

b. the slopes of both functions are positive

Step-by-step explanation:

hope this helps :)

Answer:

C. The slope of function A is positive and the slope of function B is negative.

Step-by-step explanation:

For this problem, you need to determine the slope of each function.

For function A:

You're given y = (1/4)x - 2/3, which is in slope-intercept form y = mx + b. The slope of an equation in slope intercept form is given by m.

So the slope for function A is 1/4.

For function B:

You're given a list of (x, y) points, so use the definition of the slope = [tex]\frac{y2-y1}{x2-x1}[/tex], which gives you the slope from any two (x, y) points on the line. Let's take the first and second points (2, -8) and (4, -9)

Slope = [tex]\frac{-9-(-8)}{4-2} = \frac{-1}{2}[/tex].

Therefore, the slope of function A is positive and the slope of function B is negative.

(Repost) PLEASE HELP GUYS!!

Answers

Answer:

b and e are the correct numbers

Step-by-step explanation:

i hope this helps :)

The answer to this is 23,440. I got this answer by cheating.

sientific calculator. heh.. :)

Hope this helps!!

The triangle P(1.-4), U(5,0) and N(2, 1) is reflected over the y-axis. What are the coordinates of the new points?
P
1-14

Answers

Answer:

Step-by-step explanation:

Reflection of x axis

1) the new points have the same  x coordinates

2) the new point have the opposite y coordinates

P (1;4) ; U (5;0) ; N(2;-1)

Mary noticed 5 ants in her pantry on Monday. On Tuesday she counted 15 ants in the pantry. On Wednesday she counted 45 ants in the pantry. Part A Determine an exponential function model to represent the number of ants in the pantry in terms of the number of elapsed days. Explain how you arrived at your model. Part B Using your exponential model predict how many ants would be in the pantry by Friday if the trend continues. Explain if your response is reasonable. Part C Does the problem situation represent exponential growth or decay? Justify your reasoning.

Answers

Answe

a is y=1.66667(3)^x

b is 405

c I don't know  sorry

Step-by-step explanation:

A 2-yard piece of cotton cloth costs $1.32. What is the price per foot?

Answers

Answer:

$0.22 per foot

Step-by-step explanation:

So for context, 1 yard is 3 feet. So 2 yards is 6 feet. With this, by dividing $1.32 by 6, you can get the price per foot:

1.32 / 6 ---> $0.22 per foot.

There are four people in stevens family there shoe sizes are 6 8 10 and 10 what is the range shoe sizes in stevens family

Answers

Answer:

4

Step-by-step explanation:

Range is the difference between the highest and lowest values of a set of observations

Range = highest value - lowest value

10 - 6 = 4

Answer:

4

Step-by-step explanation:

simple.... are ya crazy

Help me with this pls

Answers

Answer:

=4^6 .4^-8

= 4^6-8

=4^-2

Answer:

Hi, there your answer is

[tex]4^{-2}[/tex]

Step-by-step explanation

[tex]4^{6} *4^{-8}[/tex]

[tex]4^{6+(-8)}[/tex]

[tex]4^{-2}[/tex]

Hope this helps :)

2. The ratio of the sides of two similar polyon is 3:2
The area of the smaller polygon is 24 cm squre? What is the area of the large polygon?​

Answers

Answer:

36 cm square will be the correct answer

3/x=2/24
Do cross products 2x=72
Divide by 2 on both sides
Answer is 36 cm squared

Do you guys know how to solve with equation?

Answers

Answer:

{-8, 3/4}

Step-by-step explanation:

One by one, set the factors equal to zero and solve for v:

8 + v = 0 yields v = -8, and

4v - 3 = 0 yields 4v = 3 and v = 3/4

Wouldn’t it be 4v^2+29v-24, like the picture showed.

please help!

x = ___ cm

Answers

Answer:

3.75 cm

Step-by-step explanation:

20 * x = 5 * 15

20x = 75

Divide both sides by 20

x = 75/20

x = 3.75

Justin likes to get 7 hours of sleep. He woke up after sleeping for 5 1/3 hour. How many more hours does he need to get the amount of sleep he likes?

Answers

Answer:

He needs 1 hour 40 minutes more to get the amount of sleep he likes or 1 2/3 hours

Step-by-step explanation:

Justin likes to get 7 hours of sleep.

He woke up after sleeping for 5 1/3 hour = 5 hours 20 mins

Number of more hours needed to get the amount of sleep he likes= 7 hours - 5 1/3 hours.

1 hour = 60 minutes

1/3 hours = 60/3 = 20 minutes

Hours         Minutes

7                     00       when we borrow 1 hour we borrow 60 minutes

5                    20

1                   40

He needs 1 hour 40 minutes more to get the amount of sleep he likes

or 1 2/3 hours

6 grade math help me pls

Answers

Answer:

Median

Step-by-step explanation:

It is symmetric so you have a much easier way to find the middle numbers.

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