Question

Examine the following table that represents some points on a line.

[ X ] -5, -3, 1 3 5.
[ y ] -11/5, -7/5, 1/5, 1, 9/5.
What is the slope-intercept form of the equation for this line?
A. y = 2/5x - 1/5
B. y = 2/5x
C. y = 1/5x -2.5
D. y = 5/2x - 13/2

Answer 1

Answer: A

Explanation:

The slope is

`(1-(1)/(5))/(3-1)=(4/5)/(2)=(2)/(5)`

So, the equation is:

`y-1=(2)/(5)(x-3)\\\\y-1=(2)/(5)x-(6)/(5)\\\\y=(2)/(5)x-(1)/(5)`