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

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Citrullin asked Apr 7, 2023

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4 votes

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

Mathematics
high-school

Citrullin asked Apr 7, 2023

by Citrullin

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20 votes

Answer:

Explanation:

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

y =
(5)^(2) - 4

y = 25 - 4

y = 21

Winton Hou answered Apr 8, 2023

by Winton Hou

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14 votes

Answer:

y = 21

Explanation:

Plug in -5 into the equation

(-5)² - 4
25 - 4 = 21

Sifat Haque answered Apr 13, 2023

by Sifat Haque

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