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Given y = x^2 - 4, what is the value of y when x = -5?​
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1 vote
Given y = x^2 - 4, what is the value of y when x = -5?​

User Emanuela Colta
by
6.7k points

2 Answers

3 votes

Answer:

21

Explanation:

y =
x^(2) -4 Substitute in -5 for x

y =
(5)^(2) - 4

y = 25 - 4

y = 21

User Kshatriiya
by
6.6k points
2 votes

Answer:

y = 21

Explanation:

Plug in -5 into the equation

(-5)² - 4
25 - 4 = 21

User Teodozjan
by
6.1k points
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