Question

If f(x) = x^2 - 2x, find:

f(-3) = [?]

Answer 1

To find f(-3), plug in -3 into the function f(x) = x² - 2x, which results in f(-3) = (-3)² - 2(-3) = 9 + 6 = 15.

Step-by-step explanation:

To find f(-3), substitute x = -3 into the function f(x) = x² - 2x.

f(-3) = (-3)² - 2(-3)

First, calculate the square of -3: (-3)² = 9.

Next, multiply -2 by -3: -2(-3) = 6.

Finally, add these two results to get the value of f(-3): 9 + 6 = 15.

So, f(-3) = 15.