Question

Determine the equation of the line that passes through the given points (if you have a graphing calculator, you can us the table feature to confirm that the coordinates of both points satisfy your equation)

(-5, 10) and (5, -10)

a. y = 2x -10
b. y = 2x
c. y = -2× + 20
d. y = -2×

Answer 1

d. y = -2×

Explanation:

First to solve find the slope using the formula,
`(10+10)/(-5-5)`. The slope equals 20/-10 or -2. Then plug the slope and point, (-5,10), into slope-point form. y-10=-2(x+5), then solve for y. This gives you y=-2x+0 or y=-2x.