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