100 Points + Brainliest, please explain each answer.

Multiple Questions, all related to the same Graph.

1.

Write the equation of the line of best fit using the slope-intercept formula y=mx+b. Show all your work, including the points used to determine the slope and how the equation was determined.

Points used to find the slope: _

Slope: _

Each step of my work to find the equation;

2

Equation for the line of best fit: _

Each step of my work to find the equation;

3.

What does the slope represent within the context of your graph?

What does the y-intercept represent?

Each step of my work to find the equation;

4.

Test the residuals of two other points to determine how well the line of best fit models the data.

5.

Use the line of best fit to help you describe the correlation.

6.

Using the line of best fit that you found, approximate how tall is a person whose arm span is 66 inches?

7.

According to your line of best fit, what is the arm span of a 74-in-tall person?

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

correct answer is b. 27/8

step-by-step explanation:

16 is the absolute value

step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.