Question

What is the value of f(-8) in f(x)=-3x-9

Answer 1

The value will be .......15.......

Answer 2

f(x) = -3x - 9

Now, substitute -8 in the place of x.

f(x) = -3x - 9

f(-8) = - 3(-8) - 9

f(-8) = 24 - 9

f(-8) = 15

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Hope it helps ⚜