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alisha [4.7K]
3 years ago
7

When -2 is substituted for x, in the equation y=x2+1 what is y.

Mathematics
2 answers:
Hunter-Best [27]3 years ago
5 0

Answer:

y = -3

Step-by-step explanation:

plug in the x value,  y = -2(2) + 1

simplify, y = -4 + 1

simply again,  y = -3

we can plug the y and x in to make sure it is equal

-3 =  -2(2) + 1

simplify, -3 = -4 + 1

simplify again, -3 = -3

add 3 to both sides, 0 = 0

one possible answer is -3 for y, and -2 for x

SashulF [63]3 years ago
4 0

Answer:

5

Step-by-step explanation:

1) so lets substitute -2 as x:

y=(-2)^2+1

(-2)^2=-2*-2=4

hence

y=4+1

y=5

Hope this helps

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Answer:

x = 250°

Step-by-step explanation:

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From the figure attached,

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3 years ago
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3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=7%20%7Bx%7D%5E%7B3%7D%20%20%2B%204x%20-%205%20%2B%208%20%7Bx%7D%5E%7B5%7D%20" id="TexFormula1"
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Answer:

D

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The degree of a polynomial is determined by the largest exponent of a term within the polynomial.

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3 years ago
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Galina-37 [17]

Answer:

a

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-2 over 3 is it cuz -4 over 6 simplifies to that and all the others do too

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