Quiz about Module 3 Assessment (Quadratics)

Question 1

Welcome to the online portion of the Module 3 Assessment. You will test over quadratic graphs and solutions using methods like difference of squares, STAR method, the quadratic formula.

To begin, click on the dog that looks happy!

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Question 2

What does a quadratic equation make on a graph?

Accepted Answer

Parabola, a "U" shape

Answer

Quadrilateral, 4 sides

Answer

Line, no bends

Answer

Two lines, a "V" shape

Question 3

Use the formula $$x=-\frac{b}{2a}$$ to help you find the vertex of the parabola given by the equation $$y=\ -x^2+8x-9$$ .

Accepted Answer

(4, 7)

Answer

(4, 39)

Answer

(-4, -57)

Answer

(-4, -25)

Question 4

What is the GCF of the quadratic?

$$4x^2-6x+8$$

Accepted Answer

2

Answer

2x

Answer

4

Answer

4x

Question 5

What is the factored form of the following quadratic?

$$x^2-8x-48$$

Accepted Answer

$$\left(x-12\right)\left(x+4\right)$$

Answer

$$2\left(x^2-4x-24\right)$$

Answer

$$\left(x+12\right)\left(x-4\right)$$

Answer

$$\left(x-48\right)\left(x+40\right)$$

Question 6

Find the solution set:

$$4x^2-25=0$$

Accepted Answer

$$\left\{-\frac{5}{2},\ \frac{5}{2}\right\}$$

Answer

$$\left\{-\frac{2}{5},\ \frac{2}{5}\right\}$$

Answer

$$\left\{-\frac{5}{4},\ \frac{5}{4}\right\}$$

Answer

$$\left\{-\frac{25}{4},\ \frac{25}{4}\right\}$$

Question 7

Complete the square to find the solution set:

$$x^2-8x-5=0$$

Accepted Answer

$$4\pm\sqrt[]{21}$$

Answer

$$4\pm\sqrt[]{11}$$

Answer

$$8\pm\sqrt[]{69}$$

Answer

$$8\pm\sqrt[]{59}$$

Question 8

This is the quadratic formula: $$x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$$

Use this formula to find the solutions to $$y=x^2-3x+1$$

Accepted Answer

$$x=\frac{3\pm\sqrt[]{5}}{2}$$

Answer

$$x=\frac{-3\pm\sqrt[]{5}}{2}$$

Answer

$$x=\frac{-3\pm\sqrt[]{-13}}{2}$$

Answer

$$x=\frac{3\pm\sqrt[]{-13}}{2}$$

Question 9

Ask your teacher for the next part of the assessment (a quadratic word problem). Then, choose the parabolic shaped object to finish the online portion of the assessment!

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Module 3 Assessment (Quadratics)

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