SOLUTION: Does this parabola open upward or downward? How do you know? y=-3x^2

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Does this parabola open upward or downward? How do you know? y=-3x^2      Log On


   

Question 618931: Does this parabola open upward or downward? How do you know?
y=-3x^2
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
The co-efficient of x^2 is negative.
So the graph opens downward