Quiz about Question Bank for Grade 8 Mathematics

Question 1

Is this mapping a function or not a function?

Accepted Answer

Not a Function

Answer

Function

Question 2

Is this set of ordered pairs a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 3

.

Accepted Answer

Not a Function

Answer

Function

Question 4

Is function represented by the table linear or nonlinear?

Accepted Answer

linear

Answer

nonlinear

Question 5

Is function represented by the table linear or nonlinear?

Accepted Answer

nonlinear

Answer

linear

Question 6

Does the graph represent a linear function, a non-linear function, or is it not a function?

Accepted Answer

Linear Function

Answer

Non-Linear Function

Answer

Not a Function

Question 7

Is the function Linear or Nonlinear?

Accepted Answer

Nonlinear

Answer

Linear

Question 8

The __ - axis is vertical in the coordinate plane.

Accepted Answer

Y

Answer

X

Answer

Z

Answer

None of the above

Question 9

What is happening in the graph between 30 and 40 minutes?

Accepted Answer

Sarah is not moving

Answer

Sarah is accelerating

Answer

Sarah is slowing down

Answer

Sarah is travelling at a constant speed

Question 10

Which axis runs horizontally?

Accepted Answer

x

Answer

y

Question 11

Describe the motion in the graph:

Accepted Answer

Acceleration (increasing speed)

Answer

Constant Speed (positive slope)

Answer

Stopped (at rest)

Answer

Return Home (negative slope)

Question 12

Which scene matches the graph?

Accepted Answer

Jonathon walked to his girlfriends house - stayed a while then walked home

Answer

Justice rode her bike to the mall

Answer

Yeshua walked home from school

Question 13

Question 13.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 14

What is the y-intercept? y= 4x+2

Accepted Answer

2

Answer

4

Answer

y

Answer

4x

Question 15

What is the slope? y= -3x+5

Accepted Answer

-3

Answer

3

Answer

-3x

Answer

5

Question 16

What is the y-intercept?
y=4x

Accepted Answer

0

Answer

4

Answer

-4

Answer

4x

Question 17

The equation y = 3x + 8 models the amount of snow in inches(y) after x hours.

Interpret the y-intercept

Accepted Answer

When we started measuring, there were already 8 inches of snow on the ground.

Answer

8 inches of snow falls in 3 hours.

Answer

3 inches of snow falls in 8 hours.

Answer

Every hour, 3 new inches of snow accumulates.

Question 18

The equation y = 3x + 8 models the amount of snow in inches(y) after x hours.

Interpret the slope,

Accepted Answer

Every hour, 3 new inches of snow accumulates.

Answer

8 inches of snow falls in 3 hours.

Answer

3 inches of snow falls in 8 hours.

Answer

When we started measuring, there were already 8 inches of snow on the ground.

Question 19

The graph shows the weight of a bucket as it is filled with sand. What is the weight of the empty bucket?

Accepted Answer

1 pound

Answer

0 pounds

Answer

2 pounds

Answer

6 pounds

Question 20

Question 20.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 21

If m=3 and b=6, what is the correct slope intercept equation?

Accepted Answer

y=3x+6

Answer

y=3-6

Answer

y=3x-6

Answer

y=6x+3

Question 22

What is b if the line has a slope of -3 and passes through the point (2,0)?

Accepted Answer

6

Answer

-3

Answer

2

Answer

-6

Question 23

Simplify 4(7x + 3).

Accepted Answer

28x + 12

Answer

28x + 3

Answer

47x + 12

Answer

47x + 3

Question 24

Simplify $$3\ \left(x+5\right)$$

Accepted Answer

$$3x+15$$

Answer

$$3x$$

Answer

15

Answer

$$18x$$

Question 25

$$\ Simplify\ \ \ \ 3\left(x-5\right)$$

Accepted Answer

$$3x-15$$

Answer

$$3x$$

Answer

$$-2x$$

Answer

$$3x-2$$

Question 26

Fill in the blank:
4(3x + __) = 12x + 16

Accepted Answer

4

Answer

16

Answer

4x

Answer

12

Question 27

Use the distributive property to simplify:

5(4x - 7)

Accepted Answer

20x - 35

Answer

5x - 35

Answer

20x + 35

Answer

20x - 7

Question 28

5(a + 6)

Accepted Answer

5a + 30

Answer

5a + 6

Answer

a + 30

Answer

5a - 30

Question 29

-2(3x - 8)

Accepted Answer

-6x + 16

Answer

-6x - 16

Answer

6x - 8

Answer

-5x - 10

Question 30

-10(2 - 6p)

Accepted Answer

-20 + 60p

Answer

20 + 60p

Answer

-20 - 60p

Answer

20 - 60p

Question 31

-5(3x - 14)

Accepted Answer

-15x + 70

Answer

-15x - 70

Answer

15x - 70

Answer

15x + 70

Question 32

Square root is the inverse of ____________.

Accepted Answer

Squaring

Answer

Cube Roots

Answer

Multiplication

Answer

Absolute Value

Question 33

If you have 196 chairs and you need to arrange them in an equal amount of row and columns, how many chairs will be in each row?

Accepted Answer

14

Answer

12

Answer

13

Answer

15

Question 34

To find the square root of a number, you must divide it by 2.

Accepted Answer

False

Answer

True

Question 35

$$9^2=18$$ True or false?

Accepted Answer

False

Answer

True

Question 36

Rewrite: 4^-3

Accepted Answer

$$\frac{1}{4^3}$$

Answer

$$\frac{1}{4^{-3}}$$

Answer

$$4^3$$

Answer

$$\frac{1}{-4^3}$$

Question 37

Rewrite: 7^-5

Accepted Answer

$$\frac{1}{7^5}$$

Answer

$$7^5$$

Answer

$$\frac{1}{7^{-5}}$$

Answer

$$\frac{1}{-7^5}$$

Question 38

$$m^{-5} imes\ m^{-2}$$ Simplify. Hint: Use product rule first, then negative rule!

Accepted Answer

$$\frac{1}{m^7}$$

Answer

$$m^{-3}$$

Answer

$$m^7$$

Answer

$$\frac{1}{m^3}$$

Question 39

Simplify. Hint: do quotient rule first then negative rule!

$$\frac{x^3}{x^8}$$

Accepted Answer

$$\frac{1}{x^5}$$

Answer

$$x^5$$

Answer

$$x^{11}$$

Question 40

Which is greater, 2654⁰ or 5⁰?

Accepted Answer

They are the same

Answer

26540

Answer

50

Question 41

$$8^{-6\ }\cdot\ 8^9$$

Accepted Answer

$$8^3$$

Answer

$$\frac{1}{8^{15}}$$

Answer

$$\frac{1}{8^3}$$

Answer

$$8^{15}$$

Question 42

$$\frac{b^2}{b^5}$$

Accepted Answer

$$\frac{1}{b^3}$$

Answer

$$b^3$$

Answer

$$b^7$$

Answer

$$b^{10}$$

Question 43

According to exponent rules, when we divide two powers with the same base we _______ the exponents.
Example: h⁸/h³

Accepted Answer

subtract

Answer

add

Answer

multiply

Answer

divide

Question 44

7.82 x 10^-⁶ is an example of scientific notation. The exponent of -6 tells you your number will be very ________.

Accepted Answer

Small

Answer

Large

Answer

Basic

Question 45

Change from standard form to scientific notation: 12,000,000

Accepted Answer

1.2 x 10⁷

Answer

12.0 x 10⁷

Answer

0.12 x 10⁷

Answer

1.2 x 10⁶

Question 46

Change from standard form to scientific notation:  0.000398

Accepted Answer

3.98 x 10^-4

Answer

39.8 x 10^-5

Answer

3.98 x 10^-5

Answer

39.8 x 10^-6

Question 47

Try to change the number back to standard form: 6.79 x 10⁴

Accepted Answer

67,900

Answer

679,000

Answer

6,790

Answer

6,790,000

Question 48

Try to change the number back to standard form: 3.97 x 10^-2

Accepted Answer

0.0397

Answer

0.000397

Answer

0.0000397

Answer

0.397

Question 49

Which of the following is correct scientific notation?

Accepted Answer

2.035 x10⁴

Answer

20.35 x 10⁴

Answer

.2035 x 10⁴

Answer

2035 4

Question 50

Multiply:
(9.4 x 10⁶)(3.2 x 10⁵)

Accepted Answer

3.008 x 10¹²

Answer

30.08 x 10¹¹

Answer

3.8 x 101

Answer

2.9375 x 10¹

Question 51

What type of slope?

Accepted Answer

zero slope

Answer

undefined

Answer

positive slope

Answer

negative slope

Question 52

What type of slope?

Accepted Answer

negative

Answer

positive

Answer

zero slope

Answer

downward slope

Question 53

What type of slope?

Accepted Answer

undefined

Answer

negative

Answer

steep

Answer

zero slope

Question 54

Find the slope

Accepted Answer

-5/3

Answer

-3/5

Answer

5/3

Answer

3/5

Question 55

Find the slope

Accepted Answer

5/2

Answer

-5/2

Answer

2/5

Answer

-2/5

Question 56

Find the slope of the line.

Accepted Answer

1/2

Answer

-1/2

Answer

2/1

Answer

-2/1

Question 57

Find the slope of the line.

Accepted Answer

0

Answer

Undefined

Answer

1

Answer

-1

Question 58

Find the slope of the line.

Accepted Answer

Undefined

Answer

0

Answer

1

Answer

-1

Question 59

Find the slope of the line.

Accepted Answer

4/1

Answer

1/4

Answer

-1/4

Answer

-4/1

Question 60

find the slope

Accepted Answer

3/2

Answer

-3/2

Answer

(-0,-3)

Answer

none of the above

Question 61

5/2

Accepted Answer

Rational

Answer

Irrational

Question 62

A square root of a perfect square is which type of number?

Accepted Answer

Rational

Answer

Irrational

Question 63

A repeating decimal is what type of number?

Accepted Answer

Rational

Answer

Irrational

Question 64

Which set is in descending order? (Hint: Convert the fractions and percents into their decimal form)

Accepted Answer

9/10 .45 15%

Answer

15% .45 9/10

Answer

.45 15% 9/10

Answer

9/10 15% .45

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