Question

Tentukn persamaan garis lurus dari melalui titik (4,-5) dan gradien -3

Answer 1

Y - b = m(x - a)
y - (-5) = -3(x - 4)
y + 5 = - 3x + 12
3x + y - 7 = 0

Answer 2

(4,-5)
m=3

y-y1 = m(x-x1)
y-(-5)= 3(x-4)
y+5 = 3x-12
y = 3x-12-5
y = 3x-17
-3x+y+17=0