Question

Write the equation of the line that passes through points (-4,-1) & (5,3)

Answer 1

Explanation:

ax+by+c=0 is the equation of a line

using y-y1=m(x-x1)

m=3+1/5+4=4/9

y+1=4/9(x+4) multiplying through 9

9y+9=4(x+4)

9y+9=4x+16

9y+9-4x-16=0

9y-7-4x=0

9y-4x-7=0

then you have your answer