SOLUTION: Determine weather the graph of each parabola opens upward or downward. 24. y = � x^2 + 3 how do i determine which way the parabola opens?? can you please assist me?? thanks

Question 60397: Determine weather the graph of each parabola opens upward or downward.
24. y = � x^2 + 3
how do i determine which way the parabola opens?? can you please assist me??
thanks you are wounderful :)
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
If the sign in front of the term is positive, then the parabola looks like a cup sitting on a table.
If the sign of the term is negative, then it's an upside down cup
Try a simple example,
This is the upside-down cup with peak at (0,0) becase all other possible y's are negative
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