If anyone wouldnt mind, I would really appreciate it if someone would take a look at my work....I had to do this review, but I am not totally sure if I am doing these problems correctly..There are about 5 problems...you dont have to check them all, but I would really like to make sure that I am on the right track...thanks
For 10 you can do this in a much simpler way, assuming you don't have to put the parabola in "standard form."
A general form for a parabola is
where are the zeros of the parabola.
So two possible answers would be:
<-- Opens upward
<-- Opens downward