Question

Which of these shows the graph for the quadratic function y = x^2 + 2x + 3?

Answer 1

@aum

Answer 2

@zzr0ck3r I think it's B.

Answer 3

@robtobey ?

Answer 4

x^2 means concave up

Answer 5

+3 at the end is your y intercept so it crosses (0,3)

Answer 6

A then?

Answer 7

can't factor it since 1 times 3 is 3 but +3 means if you add the factors 1+3 =4 and you have a 2 as the middle term
this means that it is prime
your solutions are complex which means it does not cross the x axis at all

Answer 8

I would go with A

Answer 9

thank you!

Answer 10

Refer to the attached plot.

Answer 11

yw

Answer 12

the discriminant is negative and thus it has no real roots, so there is only one option that does not cross the x axis. A correct:)

Answer 13

lol sorry could not read someone already said the same thing.... lol