Choose all of the following equations that have a vertex that is the minimum point of the parabola. More than one answer may be chosen.

y = 2x2 + 2x + 8

y = −16x2 + 2x − 4

y = −x2 − 4x − 3

y = x2 + 2x + 4

Question

Choose all of the following equations that have a vertex that is the minimum point of the parabola. More than one answer may be chosen.

 y = 2x2 + 2x + 8

 y = −16x2 + 2x − 4

 y = −x2 − 4x − 3

 y = x2 + 2x + 4

anonymous · Answer

@cwrw238 
@jdoe0001

anonymous · Answer

@countonme123

jdoe0001 · Answer

so, what do they mean by a "minimum"?

anonymous · Answer

wait one sec let me see if there is a graph

anonymous · Answer

@uri

anonymous · Answer

A quadratic equation where the quadratic term (raised to the 2nd power) is positive will be a parabola opening upward. So it will have a minimum point.

anonymous · Answer

so your equations with positive x2 will be the choices

anonymous · Answer

That will be the 1st and the 4th equations