B. 2x^4-11x^3+7x^2+5x-3
step-by-step explanation:
y=mx+b
f(x) = - 2/3x + 5; f(5/2)
substitute 5/2 in for x:
f(5/2) = -2/3(5/2) + 5
simplify the right side:
f(5/2) = -5/3 + 5
f(5/2) = 10/3
answer:
i hope this you!