Question

Finding max/min....very simple one

My stupid answers sheet has been wrong twice already -.- Can you help me see if my answer is right verses the sheet again?

Answer 1

y = x^2 +2x+3

Answer 2

no max because this is a parabola that opens up

Answer 3

I got min 2 when x = -1

Answer 4

minimum value is the second coordinate of the vertex.

Answer 5

yes you are right

Answer 6

Thank you!!

Answer 7

yw (you did it!)

Answer 8

:D

Answer 9

minimum value is -b/2a so -2/2(1) so -1 and when you plug that back in you get 2, so that is the minimum.

Answer 10

Thanks (: teachers made so many mistakes >.<