SOLUTION: explain how you can tell whether a parabola opens upward, downward, to the left, or to the right

Question 195478: explain how you can tell whether a parabola opens upward, downward, to the left, or to the right
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
explain how you can tell whether a parabola opens upward, downward, to the left, or to the right
----------------------------
The x^2 or y^2 term is the deciding element.
------------
y = x^2 opens upward
y = -x^2 opens downward
x = y^2 opens to the right
x = -y^2 opens to the left
=================================
Cheers,
Stan H.
RELATED QUESTIONS
give the vertex of the parabola x=y^2-6y+1 and indicate whether it opens upward,... (answered by robertb)

How can you tell if a parabola opens left/right or up/down such as for this question.... (answered by stanbon)

Please help with problem. It comes from a homework sheet. Thank you. Find the vertex... (answered by solver91311)

how can we know if the graph of quadratic equation opens? a. upward b. downward c. to... (answered by jsmallt9,Theo)

Determine whether the graph of each parabola opens upward or downward.... (answered by checkley71)

Graph y=x^2-1 (label the vertex and the axis of symmetry) and tell whether the parabola... (answered by lwsshak3)

Graph y=-3x^2 (label the vertex and the axis of symmetry) and tell whether the parabola... (answered by Alan3354)

Good moprning everyone, This is my question: How do you graph a parabola. How do you... (answered by josmiceli)

How do you know if the parabola opens upward or downward? What are 3 key points you can... (answered by stanbon)