Question

When asked to write a point-slope equation for a line passing through the points (-2, -2) and (2, 1) a student wrote y-1=-3/4(x-2). How can she fix this to write the correct equation?

A. That is the correct equation, so no changes are neccessary
B. Change the minus signs to plus signs
C. Distribute -3/4 to each term in the parentheses
D. Change the sign of the slope

Answer 1

The slope shown here `y-1=-3/4(x-2)` is -3/4, but is the slope really -3/4?

use the slope formula to confirm the slope is correct

Answer 2

Actually that slope is incorrect, the correct slope is 3/4

Answer 3

@jim_thompson5910

Answer 4

yep, the slope is actually +3/4. You are correct

Answer 5

So the answer is B then?

Answer 6

@jim_thompson5910

Answer 7

no, D. Change the sign of the slope because you just change -3/4 to +3/4

Answer 8

Okay tthanks

Answer 9

np