Question

Write the equation of a line that passes through the points (-5, 9) and (-4, 7).

y = 2x - 19

y = 2x - 1

y = -2x + 19

y = -2x – 1

Answer 1

to find slope you do (y2-y1)/(x2-x1)
(9-7)/(-5+4)
2/-1
-2
to find equation y-y1=m(x-x1)
y-9=-2(x+5)
distribute
y-9=-2x-10
add 9
y=-2x-1

Answer 2

y = 2x -1.