Quiz about Quadratic Functions Voc

Question 1

What is the vertex form of a quadratic equation?

Accepted Answer

$$a(x - h)^2 + k$$

Answer

$$ax^2 + bx + c = 0$$

Answer

$$ax + by + c = 0$$

Answer

$$a(bx + c)^2$$

Question 2

What does the "a" in the standard form of a quadratic equation $$ax^2 + bx + c = 0$$ represent?

Accepted Answer

Coefficient of $$x^2$$

Answer

y-intercept

Answer

Slope

Answer

Constant term

Question 3

Which of the following represents the axis of symmetry in the vertex form $$a(x - h)^2 + k$$ of a quadratic equation?

Accepted Answer

$$x = h$$

Answer

$$x = a$$

Answer

$$x = k$$

Answer

$$x = b$$

Question 4

What does it mean for a quadratic equation to have "roots"?

Accepted Answer

The points where the graph crosses the x-axis.

Answer

The points where the graph crosses the y-axis.

Answer

The maximum points on the graph.

Answer

The points where the graph is tangent to the x-axis.

Question 5

What is the effect of the coefficient "a" in the quadratic equation $$ax^2 + bx + c = 0$$ on the graph of the function?

Accepted Answer

It affects the width and direction of the parabola.

Answer

It determines the x-intercepts of the graph.

Answer

It determines the y-intercept of the graph.

Answer

It affects the position of the vertex along the y-axis.

Question 6

How can you find the axis of symmetry of a quadratic function in standard form $$ax^2 + bx + c = 0$$ ?

Accepted Answer

$$x = \frac{-b}{2a}$$

Answer

$$x = \frac{-b}{a}$$

Answer

$$x = \frac{c}{a}$$

Answer

$$x = \frac{b}{2a}$$

Question 7

Quadratic equations take the shape of a _______ when graphed.

Accepted Answer

parabola

Answer

straight line

Answer

snaked line

Answer

elliptical

Question 8

An equation that can be written in the form y = ax² + bx + c

Accepted Answer

Quadratic equation

Answer

Polynomical equation

Answer

Linear equation

Answer

Maxical equation

Question 9

Is this vertex a maximum or a minimum?

Accepted Answer

max

Answer

min

Answer

cannot be determined

Question 10

What is the vertex of the given parabola?

Accepted Answer

(2, 1)

Answer

(1, 2)

Answer

x = 2

Answer

(0, -4)

Question 11

This is a _______________ function.

Accepted Answer

Quadratic

Answer

Linear

Answer

Exponential

Quadratic Functions Voc

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