Question

Please answer this. f(-9)=9-2x

Answer 1

To find the value of f(-9) for the equation f(x) = 9 - 2x, you need to substitute -9 into the equation for x and evaluate it.

f(-9) = 9 - 2(-9)

First, multiply -2 by -9:

f(-9) = 9 + 18

Then, add 9 and 18:

f(-9) = 27

Therefore, f(-9) = 27.