Quarter 2 Exam - Grade 9

1.

1 point

When two sentences are combined by the word 'and', then it is a .................

Disjunction

Conjunction

2.

1 point

Chose the correct method of writing x > 3 and x < 10 without using the word 'and'

3 > x < 10

3 < x < 10

3 < x > 10

3 > x > 10

3.

1 point

We draw .......................... circle for graphing inequalities with sign < and >

No

Closed

Open

4.

1 point

Factor the difference of squares

(x^2) - 4

(x+2)+(x-2)

(x+4)(x-4)

(x+2)(x-2)

5.

1 point

The sign of inequality changes when we divide or multiply by

it never changes

0

negative number

positive number

6.

1 point

Evaluate the following

(3x + 5y + 7z) + (4x + 2y - 10z)

7x^2+7y^2-3z^2

7x^2+7y^2-17z^2

7x+7y-3z

7x+7y-17z

7.

2 points

Solve
(19x^3 + 4x^2 - 3x + 10) - (9x^3 - 3x^2 - 10x + 2)

10x^3+7x^2+7x+8

10x^3+x^2+13x+8

10x^3+x^2-7x+8

8.

1 point

4x-(-x)=?

-4x

5x

4x^2

9.

1 point

Find the product

(4x + 2)3x

(7x^2) + 5x

(12x^2) + 6x

10.

3 points

Find the product

(2x^2 + 3)(2x - 5)

[(4x^3)-(10x^2)+6x-15]

[(2x^2)-(10x^2)+6x-15]

[(2x^3)-(10x^2)+6x-15]

[(4x^2)-(10x^2)+6x-15]

11.

1 point

Chose the correct step as per the FOIL method for the equation
(x + 3)(2x + 4)

2x^2 + 2x^2 + 6x + 12

2x^2 + 6x + 4x + 12

2x^2 + 4x + 6x + 12

2x^2 + 4x + 12 + 6x

12.

2 points

(2^3)^2 = ?

16

32

8

64

13.

2 points

Chose the correct value of x for the equation 5x + 34= -2(1 - 7x)

x=3

x=16

x=8

x=4

14.

3 points

Find solution for the following equation;

2x(2x + 6) = (2x + 3)^2

x=15

x=3

x=1

No Solution

15.

1 point

Simplify

(3/4)^2

9/16

9/8

6/16

6/8

16.

2 points

Simplify

[x(y^3)]/[(x^3)y]

(y^2)/(x^2)

x(y^2)

(x^2)y

17.

2 points

GCF of 12 and 48 is ............

12

4

2

48

18.

2 points

LCM of 12 and 48 is

4

12

2

48

19.

1 point

Factor [(4x^2)-2x]

2x(2x-x)

2x(2x-1)

2x(2x-0)

20.

1 point

Factor completely

8x – 4y + 12x - 6y

10(2x-y)

5(4x+2y)

21.

3 points

Part B

Neatly solve the following problems in your notebook and upload snapshot on thinkwave. Tick the box below to confirm the upload;

Factor the trinomial square and show complete steps:

x^2 + 16x + 64

I have uploaded my answer on thinkwave

Not done

22.

5 points

Neatly solve the following problems in your notebook and upload snapshot on thinkwave. Tick the box below to confirm the upload;

Matt and Chris both started at the same point. They drove in opposite directions for 3 hours. Matt was driving 15 mph faster than Chris. After the 3 hours, they were 400 miles apart. How fast were they driving?

I have uploaded my answer on thinkwave

Not done

23.

3 points

Neatly solve the following problems in your notebook and upload snapshot on thinkwave. Tick the box below to confirm the upload;

Factor the trinomial and show complete steps:

6x^2 - 4x - 10

I have uploaded my answer on thinkwave

Not done

24.

5 points

Neatly solve the following problems in your notebook and upload snapshot on thinkwave. Tick the box below to confirm the upload

Solve the inequality and neatly graph on number line

3x + 5 > -1 or 2x < x + 3

I have uploaded my answer on thinkwave

Not done