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

review this example:
http://openstudy.com/study#/updates/516b8bb2e4b02ec89c5ab7c2

Answer 2

Im really confused

Answer 3

CLICK ON THE LINK :)

Answer 4

i did

Answer 5

so if i made the equation 20x^2+15x+10 how do I get the vertex and x intercepts?

Answer 6

so that example is a quadratic function
in that tutorial, I went in great detail in determining whether it opened upward or downward.
as for the form of a quadratic function: y=ax^2+bx+c
a quadratic equation has its first term with an exponent of 2

Answer 7

ya?

Answer 8

read everything in the link I provided
you will learn how to get the vertex of a quadratic function

Answer 9

i have the notes written down I just forgot how to do it

Answer 10

I indicated how to look for vertex in the link I provided. step-by-step

Answer 11

okay so if I use 25x^2+15x+10
the graph is going up because its positive
idk
idk

Answer 12

okay sooo i use x=-b/2a to solvethe vertex

Answer 13

how do I solve the x-intecepts?

Answer 14

this is hard!!!!!!!!!!!!!!

Answer 15

vertex= 15/10(-2) = 15/-20 = 0.17 -_-

Answer 16

0.75 i meant

Answer 17

well you have to understand the whole concept and this takes an explanation. and it is just about using -b/2a

Answer 18

the x-intecept is to?

Answer 19

you will find out what vertex is and that you need not worry about separately solving for x-intercept if you read carefully...

Answer 20

the vertex is 1/2?

Answer 21

no... please read

Answer 22

@mathslover

Answer 23

Yes?

Answer 24

help the girl out