SOLUTION: In the equation f(x)=a (x-h)^2 +k, if a > 0, h< 0, and k <, Which of the following statements must be true? (a) The parabola opens upward and has a vertex in the 3rd quadrant. (b

Algebra ->  Test -> SOLUTION: In the equation f(x)=a (x-h)^2 +k, if a > 0, h< 0, and k <, Which of the following statements must be true? (a) The parabola opens upward and has a vertex in the 3rd quadrant. (b      Log On


   

Question 889633: In the equation f(x)=a (x-h)^2 +k, if a > 0, h< 0, and k <, Which of the following statements must be true?
(a) The parabola opens upward and has a vertex in the 3rd quadrant.
(b) The parabola opens upward and has a vertex in the 4th quadrant.
© The parabola opens downward and has vertex in the 3rd quadrant.
(d) The parabola opens downward and has a vertex in the 4th quadrant.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
You can do this. You need to learn how standard form equation of a parabola works. The vertex is (h,k) and the parabola will either have a minimum for a%3E0 or a maximum for a%3C0.