Quiz about Quadratic Equations

Question 1

Which of these is a quadratic equation?

Accepted Answer

$$y=x^2+4x-10$$

Answer

$$y=3\left(2\right)^x$$

Answer

$$y=3x+20$$

Question 2

Which of these opens up?

Accepted Answer

$$y=4x^2+6x-7$$

Answer

$$y=-2x^2+4x+6$$

Answer

$$y=-x^2+6x+12$$

Answer

$$y=-2x^2+8x+24$$

Question 3

Which of these opens down?

Accepted Answer

$$y=-16x^2+3x$$

Answer

$$y=4x^2-10x+20$$

Question 4

Which of these represents a solution in the graph?

Accepted Answer

$$3$$

Answer

$$-3$$

Answer

$$5$$

Answer

$$-4$$

Question 5

What is the y-intercept?

Accepted Answer

$$224$$

Answer

$$324$$

Answer

$$7$$

Answer

$$2.5$$

Question 6

What is the x-coordinate of the vertex?

Accepted Answer

$$25$$

Answer

$$0$$

Answer

$$50$$

Answer

$$10000$$

Question 7

Which of these represents the solution?

Accepted Answer

$$5$$

Answer

$$40$$

Answer

$$2.25$$

Answer

$$121$$

Question 8

Which of these is true about the graph?

Accepted Answer

There are no solutions.

Answer

The y-intercept is $$10$$

Answer

The vertex is a maximum

Answer

The axis of symmetry is $$x=3$$

Question 9

Which of these is true about the graph?

Accepted Answer

The axis of symmetry is

$$x=-1$$

Answer

The vertex is at

$$\left(4,\ -1\right)$$

Answer

The y-intercept is $$4$$

Answer

There are no solutions

Question 10

What is the y-intercept in this equation?

$$y=-4x^2+12x-6$$

Accepted Answer

$$-6$$

Answer

$$-4$$

Answer

$$12$$

Answer

$$6$$

Question 11

What is the y-intercept in this equation?

$$y=x^2+5x-7$$

Accepted Answer

$$-7$$

Answer

$$7$$

Answer

$$5$$

Answer

$$0$$

Question 12

What is the y-intercept in the equation?

$$y=3x^2+4x+8$$

Accepted Answer

$$8$$

Answer

$$7$$

Answer

$$6$$

Answer

$$-1$$

Quadratic Equations

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