What is the value of f(x) when x = 4 in the piecewise function

Question

What is the value of f(x) when x = 4 in the piecewise function f(x) = { 4x when x<=4

{2x^2 when x>4

Answer 1

f(4)=16 because we need to take the portion of the piecewise function when x is less than or equal to 4. Since 4 is less than or equal to 4, we need to plug 4 into 4x, which gives us 4*4=16.