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Fa5ti2ercanieMandawg
Fa5ti2ercanieMandawg Fa5ti2ercanieMandawg
  • 28-04-2016
  • Mathematics
Answered

Find f(-2).

f(x) = 9x2 - 5x + 2

A14
B18
C28
D48

Verified Answer :

SmarticalParticals
SmarticalParticals SmarticalParticals
  • 29-04-2016

f (-2) = 9(-2)^2 - 5 (-2) + 2<br />f(-2) = 36 + 10 + 2<br />f (-2) = 48

Answer Link
ColinJacobus ColinJacobus
  • 12-03-2019

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

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

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

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