Question

The graph of a quadratic function y = ax^2 + bx + c is shown. Tell whether the discriminant of ax^2 + bx + c = 0 is positive negative, or zero.

Answer 1

The discriminant is positive

Explanation:

The graph shows the parabola with branches go up in positive y-direction. This gives you that a>0.

Since parabola has two x-intercepts, then the equation
`ax^2+bx+c=0` has two different solutions and the discriminant is greater than 0.