Question

Create your own unique quadratic equation in the form y = ax2 + bx + c. Use complete sentences and show all work to determine the following:

Does the graph open up or down? How do you know?
Explain whether the graph has a maximum or minimum point.
Find the vertex and x-intercepts of the graph.

Answer 1

variable a will determine if the x^2 graph goes up or down, if it's positive it will go up if negative, down.

Answer 2

to find the x-intercepts of the graph you would have to foil out the equation and set each ( ) to zero, there may be one or two x-intercepts depending on the equation

Answer 3

I know that and I also know about the maximum or minimum point. I also know how to find the vertex. I need help creating a quadratic equation. Thanks for the x-intercept part.

Answer 4

You are welcome! haha for creating a quadratic equation just make something like (x+5)^2 and simplify it to x^2+10x+25

Answer 5

so in my example above^^^ what would the x-intercept be? and how many would be there?

Answer 6

10 would be the x intercept ?

Answer 7

no...

Answer 8

you make x+5=0, so x=?

Answer 9

5

Answer 10

right ?

Answer 11

negative 5

Answer 12

Close -.-

Answer 13

haha good job

Answer 14

Thanks, lol.

Answer 15

can i get a medal? =)