Question

How do you find the discriminant of a graph, if they don't give you an equation to solve for?

Answer 1

what do you have instead? just a graph?

Answer 2

yes.

Answer 3

ok... this guy's gonna tell you what that means....

Answer 4

ok, ty.

Answer 5

You can't really get an exact discriminant unless you form an equation, but you can find the basic characteristics of one.
If the graph crosses the x-axis only once, then the discriminant is 0.
If the graph crosses the x-axis twice, but the places it does are irrational, then the discriminant is positive, but not a perfect square.
If the graph crosses the discriminant twice and the places it crosses are rational numbers, then the discriminant is a positive perfect square.
If the graph doesn't cross the x-axis at all, then the discriminant is negative.

Answer 6

tyvm :)

Answer 7

np :)

Answer 8

btw, if the line crosses the y axis and not the x axis does it give a different answer or wud it still be negative?

Answer 9

It would still be negative.

Answer 10

ty. :)

Answer 11

you're welcome