Question

Determine the equation of the line, written in slope-intercept form, that passes through the points (1,1) and (5,−1).

Answer 1

y=-1/2x+3/2

Explanation:

m=(y2-y1)/(x2-x1)

m=(-1-1)/(5-1)

m=-2/4

m=-1/2

y-y1=m(x-x1)

y-1=-1/2(x-1)

y=-1/2x+1/2+1

y=-1/2x+1/2+2/2

y=-1/2x+3/2