Question 787019
You selected rational functions for this question. This is not a rational function. A rational functional is a function divided by another function. 

This is called evaluation of functions.

If f(x,y) = (2x)^y, then f(4,3) is equal to _______.

Let x be 4 and y be 3.

f(4,3) = (2*4)^3

f(4,3) = (8)^3

f(4,3) = 512

Is this clear?
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