diberikan T (X) = 4 + aX dengan x anggota R apabila t(-1)=1 hitunglah a.T(1) b.T(-3) c.T(1/3) d.T(1/4)

T(x) = 4 + ax
T(-1) = 4 + a(-1)
1 = 4 - a
a = 4 - 1
a = 3

maka :
a. T(1) = 4 + (3)(1)
    T(1) = 7

b. T(-3) = 4 + 3(-3)
    T(-3) = -5

c. T(1/3) = 4 + 3(1/3)
    T(1/3) = 5

d. T(1/4) = 4 + 3(1/4)
    T(1/4) = 4 + 3/4
    T(1/4) = 19/4  atau 4 3/4