Answer:
h(4) = -64.
Step-by-step explanation:
h(x) = 1/2x^4 - 3x^3
Substituting h = 4 in the above:
h(4) = 1/2(4)^4 - 3(4)^3
= 1/2 * 256 - 3 * 64
= 128 - 192
= -64.