diketahui fungsi f dinyatakan dengan f(x) = 4*-6.jika f(a+1)= -10,nilai a =

jawab
f(x) =  4x - 6

f(a + 1) = - 10
4(a + 1) - 6= - 10
4(a + 1)= -10 + 6 = - 4
a + 1 = - 4/4
a + 1 = - 1
a = - 2