Question

In slope-intercept form, what is the equation of the line containing the points (−1, 2) and (2, −1)? y = −x + 1 y = x + 1 y = −x + 3 y = −x − 1

Answer 1

i just took the test its not y=x+1

Explanation:

Answer 2

The answer is the first option. y=-x+1

y=-x+1

(-1,2)
2=-(-1)+1
2=1+1
2=2

(2,-1)
-1=-(2)+1
-1=-2+1
-1=-1

It all checks out!