Question

Which is the point slope form of the line with slope -2 that passess through the point (3,1) ?

y−1=−2(x−3)
y=−2x+1
y=−2x+7
y+1=−2(x+3)

Answer 1

y - 1 = -2(x - 3)

Explanation:

Point slope form is y1 - y2 = m(x1 - x2)

We are given a point that we'll label as (x2,y2): (3,1)

Slope, m, is -2

We then have:

y1 - y2 = m(x1 - x2)

y - 1 = -2(x - 3)