Question

Evaluate
Find (f + g) (4) given f(x) = x - 1 and g(x) = x + 2.

Answer 1

If f(x) = 3x, and y is a function of x (i.e. y = f(x) ), then the value of y when x is 4 is f(4), which is found by replacing x"s by 4"s .

Explanation: