Question

What is the output of the function: f(x)=2x+5, if the input is 3?

Answer 1

2*3+5=11

Explanation:

Answer 2

`\boxed {\boxed {\sf 11}}`

Explanation:

We are given the following function and asked to find the output if the input is 3.

`f(x)= 2x+5`

The input is what is plugged into the function and its variable is x. The output is the result of plugging in the input and its variable is y.

Substitute 3 in for x,

`f(3)= 2(3)+5`

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. Multiply 2 and 3.

`f(3)= 6+5`

Add.

`f(3)= 11`

If the input is 3, then the output is 11.