tentukan persamaan garis yang melalui. a.(2,0)&(0,4). b.(0,2)&(5,0)

a. x1=2
y1=0
x2=0
y2=4

m=y2-y1/x2-x1
m=4-0/0-2
m=4/-2
m=-2

y-y1=m(x-x1)
y-0=-2(x-2)
y=-2x+4

b. x1=0
y1=2
x2=5
y2=0

m=y2-y1/x2-x1
m=0-2/5-0
m=-2/5

y-y1=m(x-x1)
y-2=-2/5(x-0)
y-2=-2/5x+0
y=-2/5x+2

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