Question

[Sissy Devane]

If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?

 

[Aladdin]

If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?

The points where the graph cuts the x'Ox axis -- Or -- where y=0

 

[mmm4444bot]

The points where the graph cuts the x'Ox axis

Hello Sissy Devane:

I will translate, for you.

By typing "cut the x'Ox axis", Aladdin is trying to say that any x-intercept is a solution.

If the graph does not intersect the x-axis, then you cannot determine the equation's solutions from the graph because those solutions are a pair of Complex conjugates (i.e., the solutions are not Real numbers).

Cheers,

~ Mark

 

[Sissy Devane]

Thanks, I guess you could see I didn't understand the way Alladin answered...I'm not familar with the symbols/meanings