Diketahui F(x)= ax+b f(2)=6 & f(-8)= 1 tentukan rumus F(x)

F(2) = 2a + b = 6
f(-8) = -8a + b = 1 –
10a = 5
a = 5/10 = ½

2a + b = 6
2(½) + b = 6
1 + b = 6
b = 5

f(x) = ½ x + b

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