Quadratic Function Quest

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Quiz on quadratic basics

Created by

Amal Rafik

Saudi Arabia

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Froggy Jumps Quadratic Function QuestOnline version Quiz on quadratic basics by Amal Rafik 1 What is the standard form of a quadratic function? a f(x)=a+bx+c^2 b f(x)=a(x^2+b)x+c c f(x)=ax^2+bx+c 2 Which value determines the axis of symmetry of y=ax^2+bx+c? a x = -b/(2a) b x = -a/(2b) c x = b/(2a) 3 The vertex form of a quadratic is convenient for... a finding the discriminant b reading the vertex coordinates c solving linear equations 4 What does the discriminant Δ = b^2 - 4ac tell you? a Number and type of real roots b Slope of the tangent c Y-intercept value 5 If a>0, the parabola opens which way? a Horizontal b Upward c Downward 6 Complete the square to transform f(x)=ax^2+bx+c when a≠0. Which step is first? a Factor out a from x^2 and x terms b Set f(0)=c c Add b to both sides 7 What is the y-intercept of f(x)=2x^2+3x-5? a 0 b -2 c -5 8 For y=ax^2+bx+c, what is the minimum value when a>0? a The slope of tangent b The vertex y-coordinate c The discriminant 9 Which of these describes the graph of a quadratic? a A parabola b A hyperbola c A line 10 If f(x)=x^2-4x+3, what are the roots? a x=0 and 4 b x= -1 and 3 c x=1 and x=3

Froggy Jumps

Quadratic Function QuestOnline version

Quiz on quadratic basics

by Amal Rafik

What is the standard form of a quadratic function?

f(x)=a+bx+c^2

f(x)=a(x^2+b)x+c

f(x)=ax^2+bx+c

Which value determines the axis of symmetry of y=ax^2+bx+c?

x = -b/(2a)

x = -a/(2b)

x = b/(2a)

The vertex form of a quadratic is convenient for...

finding the discriminant

reading the vertex coordinates

solving linear equations

What does the discriminant Δ = b^2 - 4ac tell you?

Number and type of real roots

Slope of the tangent

Y-intercept value

If a>0, the parabola opens which way?

Horizontal

Upward

Downward

Complete the square to transform f(x)=ax^2+bx+c when a≠0. Which step is first?

Factor out a from x^2 and x terms

Set f(0)=c

Add b to both sides

What is the y-intercept of f(x)=2x^2+3x-5?

-2

-5

For y=ax^2+bx+c, what is the minimum value when a>0?

The slope of tangent

The vertex y-coordinate

The discriminant

Which of these describes the graph of a quadratic?

A parabola

A hyperbola

A line

If f(x)=x^2-4x+3, what are the roots?

x=0 and 4

x= -1 and 3

x=1 and x=3

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Quadratic Function Quest

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Quadratic Function QuestOnline version

by Amal Rafik

What is the standard form of a quadratic function?

Which value determines the axis of symmetry of y=ax^2+bx+c?

The vertex form of a quadratic is convenient for...

What does the discriminant Δ = b^2 - 4ac tell you?

If a>0, the parabola opens which way?

Complete the square to transform f(x)=ax^2+bx+c when a≠0. Which step is first?

What is the y-intercept of f(x)=2x^2+3x-5?

For y=ax^2+bx+c, what is the minimum value when a>0?

Which of these describes the graph of a quadratic?

If f(x)=x^2-4x+3, what are the roots?

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