Quiz about Grade 9 Refresher

Question 1

Which of the following are perfect squares? (Check all that apply)

Accepted Answer

4

Accepted Answer

25

Accepted Answer

100

Answer

2

Answer

80

Question 2

What is the square root of 4?

Accepted Answer

2

Answer

4

Answer

16

Answer

8

Question 3

What is $$2^5$$ ?

Accepted Answer

32

Answer

10

Answer

25

Answer

64

Question 4

Which of the following are rational numbers? (Select all that apply)

Accepted Answer

3/4

Accepted Answer

2.7

Answer

$$\pi$$

Answer

$$\sqrt[]{2}$$

Question 5

Add the following rational numbers: $$\frac{1}{2}+\frac{3}{4}$$

Accepted Answer

$$\frac{5}{4}$$

Answer

$$\frac{4}{6}$$

Answer

$$\frac{2}{3}$$

Answer

1

Question 6

What kind of polynomial is the following: $$2x^2-5$$

Accepted Answer

binomial

Answer

trinomial

Answer

monomial

Answer

I don't remember how to do this

Question 7

Add the polynomials: $$\left(2x^2-9x+4\right)+\left(-x^2-x-2\right)$$

Accepted Answer

$$x^2-10x+2$$

Answer

$$x^2-8x+2$$

Answer

$$3x^2-10x+6$$

Answer

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

Question 8

Multiply the polynomials: $$-2\left(-6x^2+3x-7\right)$$

Accepted Answer

$$12x^2-6x+14$$

Answer

$$-12x^2+6x-14$$

Answer

$$-8x^2+x-9$$

Answer

$$8x^2-x+9$$

Question 9

Solve the following equation for x: $$-4x=48$$

Accepted Answer

$$x=-12$$

Answer

$$x=12$$

Answer

$$x=8$$

Answer

$$x=-8$$

Question 10

Solve the following equation for x: $$4\left(x-3\right)=-2x+6$$

Accepted Answer

$$x=3$$

Answer

$$x=-3$$

Answer

$$x=\frac{3}{2}$$

Answer

$$x=-6$$

Question 11

Which of the following is the inequalities matches the graph provided?

Accepted Answer

$$x<5$$

Answer

$$x\le5$$

Answer

$$x>5$$

Answer

$$x\ge5$$

Question 12

Solve the following inequality: $$x-2>8$$

Accepted Answer

$$x>10$$

Answer

$$x<10$$

Answer

$$x<6$$

Answer

$$x>6$$

Question 13

Solve the following inequality: $$6x\ge-24$$

Accepted Answer

$$x\ge-4$$

Answer

$$x>4$$

Answer

$$x\le-4$$

Answer

$$x<4$$

Question 14

Solve the following inequality: $$-6x\ge24$$

HINT: Remember what happens when we divide by a negative?

Accepted Answer

$$x\le-4$$

Answer

$$x<-4$$

Answer

$$x>-4$$

Answer

$$x\ge-4$$

Question 15

This linear relation has

Accepted Answer

a positive slope

Answer

a y-intercept of +2

Answer

a negative slope

Answer

no y-intercept

Question 16

Which equation matches the table?

Accepted Answer

y = x + 5

Answer

y = 5x

Answer

y = x - 5

Answer

x = y - 5

Question 17

What is the y-intercept of this graph?

Accepted Answer

(0,1)

Answer

(0,-2)

Answer

(0,0)

Answer

(0,3)

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