-Need help with Word Problem: Quatratic Functions Please-

jokerrules

New member
Joined
Feb 3, 2006
Messages
3
Here is the following question...I really do not understand it...lol sorry

How many different x-intercepts could the graph of a quadratic funtion have? explaine.

How many different y-intercepts could it have? explaine

Is it possible for the graph of a quadratic function have a equal x and y intercepts? explaine.

Thanks if anyone can help
 
The graph of a quadratic is a parabola, opening in any of the four directions.
If it is up, the parabola hits the x axis zero times (vertex is above the x axis) once (vertex is on the x axis) or twice (vertex is below the x axis.) It is a curve that can have any value for x (plus or minus) but never doubles back so for any x there is exactly one y.
Left, right and down are analogous.

Think about y=x²
 
jokerrules said:
I really do not understand it.
The previous reply reinterates some properties of graphs of quadratics, but are you familiar with parabolas at all?

Thank you.

Eliz.
 
Top