Question

A student writes the equation for a line that has a slope of -6 and passes through the point (2, –8).

y -(-8) = -6(x - 2)

y -(-8) = -6x + 12

y -(-8) + 8 = -6x + 12 + 8

y = -6x + 20

Explain why the work is not correct.

HURRY PLEASE!

Answer 1

If you wrote this in point-slope form, it’ll be y+8=-6(x-2).

This equation written in slope intercept form would be y = -6x+4.

He messed up because he was supposed to change the double negative into a positive then solve. He was not supposed to add 8 on both sides.

So, the answer is y = -6x+4.

Hope this helps!