179k views
1 vote
Find f(-2).
f(x) = 9x2 - 5x + 2
A) 14
B) 18
C) 28
D) 48

2 Answers

0 votes
f (-2) = 9(-2)^2 - 5 (-2) + 2<br />f(-2) = 36 + 10 + 2<br />f (-2) = 48
User Andrea Zonca
by
8.0k points
5 votes

Answer: The answer is (D) 48.

Step-by-step explanation: Given that the function f(x) is defined as follows:


f(x)=9x^2-5x+2.

We are to find the value of f(-2).

To do so, we need to put the value of x as - 2 in the given definition. So, substituting x = -2, we get


f(-2)\\\\=9(-2)^2-5(-2)+2\\\\=9* 4+10+2\\\\=36+12\\\\=48.

Thus, the option (D) 48 is the correct answer.

User Scarlz
by
8.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories