Given the function f(x) = 2x4 - 7x3 – 5x?, find f(-1).
f(-1) = 8
f(-1) = 4
f(-1) = 0
fl-1) =-10

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.