diketahui f fungsi linier dengan f(x) = ax+1 dan f(6)=4 tentukan: a.bentuk fungsi b.nilai f(-2) c.nilai f(-2)+f(2) d.bentuk fungsi f(2x-1) (pake cara ya)

f(x) = ax +1
f(6) = 6a + 1 = 4
6a = 4-1
6a = 3
a = 3/6 = 1/2
a. bentuk fungsi = f(x) = 1/2x + 1
b. f(-2) = 1/2(-2) + 1 = -1 +1 = 0
c . f(2) = 1/2 (2) +1 = 1 +1 = 2
nilai f(-2) +f(2) = 0 + 2 = 2