What is the slope and y-intercept of the following equation:<br> = 13 − 4 (show your work pls)

Find the equation of line (use exact numbers)

maw [93]

Answer:

$y=3x+3$

Step-by-step explanation:

Use the slope-intercept form:

$y=mx+b$

m is the slope and b is the y-intercept. The y-intercept is the place where x is equal to 0, and the slope is the change in the y-axis over the change in the x-axis, otherwise known as rise over run ( $\frac{rise}{run}$ ).

If you study the graph, you can see that the line crosses the y-axis at (0,3), so 3 is the y-intercept. Insert into the formula:

$y=mx+3$

Now find the slope. Use the slope formula:

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{rise}{run}$

You need two points first. You can use the y-intercept (0,3) and another even point, like (1,6). Insert the values:

$(0_{x1},3_{y1})\\(1_{x2},6_{y2})\\\\\frac{6-3}{1-0}=\frac{3}{1}=3$

The slope is 3. Insert this value:

$y=3x+3$

:Done

7 0

3 years ago

Part F What is the mean absolute deviation for Doctor A’s data set on glasses? What is the mean absolute deviation for Doctor B’

frez [133]

There is more variability on glasses of doctor B's dataset than the glasses of doctor A's dataset

<h3>The doctors' mean absolute deviation on glasses</h3>

The dataset of doctor A is given as:

643 634 670 658 636 624 641 655 649 629

The dataset of doctor B is given as:

651 625 622 624 631 621 653 647 646 646

Using a statistical calculator, we have:

<u>Doctor A</u>

Doctor A: Mean Absolute Deviation (MAD) = 11.28
Doctor B: Mean Absolute Deviation (MAD) = 12

Hence, the mean absolute deviation is 11.28 for Doctor A’s and 12 for Doctor B’s data set on glasses

<h3>The variation of the two data</h3>

In a dataset, the larger the mean absolute deviations value, the larger the variation.

By comparison, 12 is greater than 11.28

Hence, there is more variability on glasses of doctor B's dataset than the glasses of doctor A's dataset

Read more about mean absolute deviation at:

brainly.com/question/3250070

#SPJ1

7 0

2 years ago

You buy the same number of brushes, rollers and paint cans. Write an expression in simples form that represents the total amount

jeyben [28]

T= 21.79x + 3.99x + 6.89x where t is the total cost and x is the number of brushes/rollers/paint cans you buy. You don't need a different variable for each item because you buy the same amount of each.

4 0

3 years ago

Read 2 more answers

A relay race covers 1 1/2 kilometers, and each runner on a team will rub 1/4 of a kilometers. How many runners are needed for a

VikaD [51]

We need to find how many 1/4 groups are in 1 1/2.
I work better with decimals, so I'll just convert them into decimals. We're dividing to see how many people we need.
1.5÷0.25
6
So, you'll need 6 runners for the relay race.

8 0

4 years ago

Read 2 more answers

An insulator is installing fiberglass insulation in exterior walls that total up to 1,623 square feet after windows and doors a

ahrayia [7]

Answer:

143 because if you subtract 49 and 28 you get 21 the you divide 21 and 1623

6 0

2 years ago

What is the slope and y-intercept of the following equation: = 13 − 4 (show your work pls)