How do you find the function values f(-1) given F(x) = -4x?

1 Answer
smendyka
Aug 21, 2017

See a solution process below:

Explanation:

To find f(-1)f(−1) substitute color(red)(-1)−1 for each occurrence of color(red)(x)x in F(x) = -4xF(x)=−4x

f(color(red)(x)) = -4color(red)(x)f(x)=−4x becomes:

f(color(red)(-1)) = -4 xx color(red)(-1)f(−1)=−4×−1

f(color(red)(-1)) = 4f(−1)=4

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