Question

The equation of which graph has a discriminant of zero?

Answer 1

If the parabola has exactly one x-intercept, then the discriminant is 0

Answer 2

If the parabola has 2 x-intercepts, then the discriminant is larger than 0

If the parabola has no x-intercepts, then the discriminant is less than 0

Answer 3

The equation of a parabola can have discriminant = 0. This means it intersects with the x axis only once, and has only one x - intercept

Answer 4

Ohh I see so if it crosses the x axis once

Answer 5

correct

Answer 6

thank you! :)