if f(x) = 5x + 4 find f(1)
replace x with 1
f(1) = 5(1) + 4 = .....
To find f(1) for the given function f(x) = 5x + 4, you need to substitute x = 1 into the function and evaluate the expression.
Step 1: Replace x with 1 in the function f(x) = 5x + 4.
f(1) = 5(1) + 4
Step 2: Simplify the expression.
f(1) = 5 + 4
Step 3: Perform the addition.
f(1) = 9
Therefore, f(1) = 9.