Question 1124506
Find f(1), f(4), and f(-2) if f(x)=-5x-7.
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f(x)=-5x-7
For f(1), where you see x, sub 1.
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For f(-2), where you see x, sub -2.

For f(4), where you see x, sub 4.
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It looks scary, but it's simple.