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Katyanochek1 [597]
3 years ago
13

If f (x) = -2x what is f (4)

Mathematics
2 answers:
morpeh [17]3 years ago
3 0

Answer:

-8

Step-by-step explanation:

1. f(x)=-2x

2. f(4) = -2(4)

3. f(4) = -8

Hunter-Best [27]3 years ago
3 0

f(4) says "what's the y-value when x=4"?

Substitute 4 for x:

f(4) = -2 (4)

     = -8

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