Question

PLEASE HELP ME!!!!!!!!!

The relationship between hours exercised and the score on a memory test is modeled by the following line of best fit: y
= 4.8x + 27. Interpret the slope and intercept of the trend line within the context of the data.

Answer 1

X= -5.625 I think that what it is at least. Hope it helps :(

Answer 2

Slope: 4.8, x-intercept: -27/4.8, y-intercept: 27

Explanation:

To find the slope, use the formula y = mx + b. In this formula, m represents the slope. Since the given equation is based on the above formula, m is 4.8.

To find the x-intercept, set y equal to 0 and solve for x.

y = 4.8x + 27

0 = 4.8x + 27

-27 = 4.8x

-27/4.8 = x

x = -27/4.8

To find the y-intercept, we use the formula y = mx + b again. In this formula, b represents the y-intercept. And, since the equation is based on this formula, b is 27.

(Remember this for future reference: even though the formula says +b, the y-intercept can still be negative).

I hope this helped!