Find f (4).

f (x) = x2 + 2x - 3

A) 5

B) 11

C) 13

D) 21

Question

Alfredo Andersen

Mathematics

26 December, 04:03

Find f (4).

f (x) = x2 + 2x - 3

A) 5

B) 11

C) 13

D) 21

+5

Answers (1)

Know the Answer?

Ben Bowers · Answer 1

D) 21

Step-by-step explanation:

1st - You plug in 4 into every place where there is an x. (4) ^2+2 (4) - 3. After entering it into the calculator you should get 21.

2nd - I had this on USATestprep and this was the correct answer.

Find f (4).f (x) = x2 + 2x - 3A) 5B) 11C) 13D) 21

Find f (4).

f (x) = x2 + 2x - 3

A) 5

B) 11

C) 13

D) 21