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nadezda [96]
2 years ago
15

If f(x) = 4x – 20, what is f(4)? A. –12 B. –4 C. 16 D. 4

Mathematics
2 answers:
galben [10]2 years ago
5 0

Answer:  B. -4

Step-by-step explanation:

We are given the function : f(x)=4x-20

To find the value of f(4), we substitute the x equals to 4 in the above function and then simplify it to get the answer.

i.e. At x= 4 , f(4)=4(4)-20

Now, simplify the above expression, we get

f(4)=16-20=-4

Therefore, the correct option is Option (B.) -4 .

Lyrx [107]2 years ago
4 0
It's B. You enter 4 instead of x on the right side and see what you get.
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2 years ago
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