Write an equation of the line passing through (-5,-14) and (4,0.4) in form of Ax+By= C

2 answers

m = -14 -.4 divided by -5 -4

-14/4/-9 14.4/9 = m

y+14 = (14.4/9)(x+5)

the equation will be in y=mx + b form and you can change it to Ax+By =C
slope = (.4 + 14)/(4+5)
= 14.4/9 = 144/90 = 8/5

so using (-5,-14)
y+14 = (8/5)(x+5)
5y + 70 = 8x + 40

8x - 5y = 30