3 years ago

If f (x) = 3x²-7 , find f(4)

2 answers:

6 0

Hello,
To solve this function for f(4) we need to plug 4 into f(x) and the result will be our answer. We know that f(x) is $3x^2-7$ . Plugging in 4 we get $3(4)^2-7=41$ . Therefore, f(4)=41. Hope this helps!

Alla [95]3 years ago

4 0

What the question is asking you to do is plug in 4 in place of x in the given equation:
$f (x) = 3(4)^2-7 
$
$4^2=16*3-17=41$
Final answer: 41

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