Question

Which is the equation to the line passing through points (2, -7) and (5, -1)?
A) y = 2x - 8
B) y = - 2x + 9
C) y = 2x - 11
D) y = - 2x + 6

Answer 1

y2-y1/x2-x1=m
substitute the point
(-1-(-7)/(5-2)=m
66/3=m
2=m

then to find equation
y-y1=m(x-x1)
y-(-7)=2(x-2)
y+7=2x-4
y=2x-11

answer c