which is f(5) for the function -2x² + 2x - 3?\n-107\n-63\n-43\n-37

Answer:

-43

Explanation:

Step1: Substitute x = 5

$f(5)=-2\times5^{2}+2\times5 - 3$

Step2: Calculate exponent

$5^{2}=25$, so $f(5)=-2\times25 + 2\times5-3$

Step3: Calculate multiplications

$-2\times25=-50$, $2\times5 = 10$, then $f(5)=-50+10 - 3$

Step4: Calculate additions and subtractions

$-50+10=-40$, $-40-3=-43$