Find f (4).

f (x) = x2 + 2x - 3

Question

Mathematics

Dominique Zuniga

13 January, 12:24

Find f (4).

f (x) = x2 + 2x - 3

+1

Answers (2)

Know the Answer?

Brenden Kelley · Answer 1

f (x) = 21

Step-by-step explanation:

So the equation sad that the f (x) is equal to 4. Means the x is equal to 4.

If you plug in 4:

x^2+2x-3

4^ (2) + 2 (4) - 3

16+8-3

=21

The answer is 21.

Miley Miller · Answer 2

21.

Step-by-step explanation:

f (4) is the value of f (x) when x = 4 so the answer is:

4^2 + 2*4 - 3

= 16 + 8 - 3

= 21.

Find f (4).f (x) = x2 + 2x - 3

Find f (4).

f (x) = x2 + 2x - 3