Persamaan garis yg melalui titik A(2,0) B(0,4) adalah ....
a. y+2x=4
b. y-2x=4
c. 2y+x=4
d. 2y-x=4
*pke cara ya
a. y+2x=4
b. y-2x=4
c. 2y+x=4
d. 2y-x=4
*pke cara ya
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y1 = 0
x2 = 0
y2 = 4
y - y1 / y2 - y1 = x - x1 / x2 - x1
y - 0 / 4 - 0 = x - 2 / 0 - 2
y - 0 / 4 = x - 2 / -2
-2( y - 0 ) = 4 ( x - 2)
-2y + 0 = 4x - 8
-2y = 4x - 8 (÷(-2))
y = -2x + 4