Question

F(x)= 4x+7, find f(4)

Answer 1

Answer: f(4) = 23

Explanation:

Our task is to evaluate the following function, when x = 4:

`\bf{f(x)=4x+7}`

Substitute 4 for x:

`\bf{f(4)=4(4)+7}`

`\bf{f(4)=16+7}`

`\bf{f(4)=23}` (answer)

Answer 2

Answer: f(4) = 23

Explanation:

To find f(4), we will substitute 4 for x into the given function.

Given:

f(x) = 4x + 7

Substiute:

f(4) = 4(4) + 7

Multiply:

f(4) = 16 + 7

Add:

f(4) = 23