1.04 Discriminant of a quadratic

Interactive practice questions

Consider a parabola of the form $y=ax^2+bx+c$y=ax2+bx+c, where $a>0$a>0

Which of the following statements is true?

The vertex of the parabola is a maximum point.

The vertex of the parabola is a minimum point.

Each parabola below has an equation of the form $y=ax^2+bx+c$y=ax2+bx+c.

Select all the graphs for which $a>0$a>0

Loading Graph...

Easy

< 1min

Below is the result after using the quadratic formula to solve an equation.

$x=\frac{10\pm\sqrt{-1}}{8}$x=10±√−18

Easy

< 1min

How many solutions are there to the equation $x^2=9$x2=9?

Easy

< 1min

How many solutions are there to the equation $\left(x-4\right)^2=0$(x−4)2=0?

Easy

< 1min