Respuesta :

Answer:

0,40,60

Step-by-step explanation:

where dots touch the x axis

Answer:

Roots of Quadratic Equations and the Quadratic Formula

Roots are also called x-intercepts or zeros. A quadratic function is graphically represented by a parabola with vertex located at the origin, below the x-axis, or above the x-axis. Therefore, a quadratic function may have one, two, or zero roots.