Parabola Basics
- 100
What is the graph of any quadratic function y=ax²+bx+c, where a≠0, called?
- 200
Which way does the parabola y=3x²−2x+1 open?
- 300
At what point does…
In the game - 400
What is the…
In the game - 500
What is the…
In the game
Grade 9 · Algebra
Algebra quiz for grade 9: The quadratic function
This quiz helps revise “The quadratic function” in Algebra for grade 9. It has 25 questions in five categories: Parabola Basics, Vertex and Axis, Graph Moves, Zeros and Signs, Quadratic Models. Questions get harder as the points go up, from 100 to 500.
A peek at the questions
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
Vertex and Axis
- 100
What is the vertex of y=(x−2)²+1?
- 200
What is the axis of symmetry of y=x²−6x+5?
- 300
What is the…
In the game - 400
Find the…
In the game - 500
For y=ax²−12x+7, the axis…
In the game
Graph Moves
- 100
How must y=x² move to become y=x²+4?
- 200
How must y=x² move to become y=(x+3)²?
- 300
What transformation changes…
In the game - 400
Compared with y=x², is…
In the game - 500
What formula results when…
In the game
Zeros and Signs
- 100
What is the zero of y=x²?
- 200
What are the zeros of y=(x−2)(x+1)?
- 300
How many real…
In the game - 400
For which x…
In the game - 500
For which…
In the game
Quadratic Models
- 100
A ball's height is h(t)=−t²+4t+1. After how many seconds is it greatest?
- 200
An arch has profile h(x)=−x²+9, with h in metres. What is its maximum height?
- 300
A rectangle has area…
In the game - 400
Revenue is R(x)=−2x²+40x. For…
In the game - 500
An object's height in…
In the game
Play this quiz
All 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.
How it works
- Pick a quiz and press “Play”.
- Send students or friends the link — they join from a phone or a computer.
- Choose questions on the board, buzz in first and collect points.