###### ← SWIPE →

Course Content
Algebra 1
0/14
Algebra 2
0/16
Trigonometry 1
0/18
Coordinate Geometry of the Line
0/14
Probability 1
0/14
Geometry 1
0/6
Differential Calculus
0/10
Trigonometry 2
0/10
Sequences & Series
0/12
Statistics 1
0/9
Coordinate Geometry of the Circle
0/14
Algebra 3
0/16
Complex Numbers
0/12
Geometry 2
0/4
Integration
0/8
Differential Calculus Applications
0/8
Financial Maths
0/8
Length, Area & Volume
0/6
Probability 2
0/9
Functions
0/15
Statistics 2
0/4
Inferential Statistics
0/6
Digital Lessons

Knowledge Check Quiz

#### EXAMS.IE

Hint

1 / 5

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

Hint

The function has two coordinate pairs in which $$y=0$$\.

2 / 5

If a quadratic equation has two distinct real roots, what is true about the graph of the corresponding function?

Hint

The function has one coordinate pair in which $$y=0$$\.

3 / 5

If a quadratic equation has one distinct real root, what is true about the graph of the corresponding function?

Hint

The function has no coordinate pairs in which $$y=0$$\.

4 / 5

If a quadratic equation has only complex roots, what is true about the graph of the corresponding function?

Hint

The square root of the discriminant will be a complex number.

5 / 5

If a quadratic equation has only complex roots, what is true about the discriminant for that equation?