Question

Tentukan persmaan garis yang melalui titik
a. {1,3}dan ber geradien 2
b. {-3,-4}dan ber gerdien1 per 3

Answer 1

A. (1,3) = (a,b) m = 2
rumus : y-b = m(x-a)
y-3 = 2(x-1)
y-3 = 2x-2
y = 2x-2+3
y = 2x+1
b. (-3,-4) (a,b) m = 1/3
rumus : y-b = m(x-a)
y-(-4) = 1/3 (x-(-3))
y+4 = 1/3(x+3)
y+4 = 1/3x+1
y= 1/3x+1-4
y=1/3x-3