diketahui f: x 5x-2 dengan dimain D = {-2,-1 ,0,1,2} tentukan rumus fungsi dan rangenya

rumus fungsi : f(x)= 5x-2
f(-2)= 5×(-2)-2 =-12
f(-1) = 5×(-1)-2 = -7
f(0) = 5× 0 -2 = -2
f(1) =5×1-2 = 3
f(2) = 5×2-2 =8
range = {-12,-7,-2,3,8}
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