Given the function f(x)=x2+2x+1, find:
f(−7)
F(-7) = (-7)^2 + 2(-7) + 1 = 49 - 14 + 1 = 36.
use -7 for x
(-7)^2 + 2(-7) + 1
49 - 14 + 1
To find f(-7) for the given function f(x) = x^2 + 2x + 1, we need to substitute -7 into the function for x and evaluate it.
Step 1: Start with the given function f(x) = x^2 + 2x + 1.
Step 2: Replace x with -7 in the function.
f(-7) = (-7)^2 + 2(-7) + 1
Step 3: Simplify the equation.
f(-7) = 49 - 14 + 1
f(-7) = 36
Therefore, f(-7) is equal to 36.