Question

Evaluate y=-x^2-4 for x=-4

Answer 1

$Solution, solve\:for\:y,\:y=-\left(-4\right)^2-4\quad :\quad y=-20$

$Steps:$

$y=-\left(-4\right)^2-4$

$\mathrm{Apply\:exponent\:rule}:\quad \left(-a\right)^n=a^n,\:\mathrm{if\:}n\mathrm{\:is\:even},\\\left(-4\right)^2=4^2,\\y=-4^2-4$

$4^2=16,\\y=-16-4$

$\mathrm{Subtract\:the\:numbers:}\:-16-4=-20,\\y=-20$

$\mathrm{The\:Correct\:Answer\:is\:y=-20}$

$\mathrm{Hope\:This\:Helps!!!}$

$\mathrm{-Austint1414}$

Answer 2

Answer:

y= -20

Step-by-step explanation: