Semester 1 Final

1.

3 points

When graphing an equation, you need the what information? Select all that apply.

The y-intercept

The value of x

The slope

The value of y

2.

2 points

5 = m - (-12)

3.

1 point

Integer rules:

When subtracting a negative and positive, the answer receives the sign of the smallest number.

True

False

4.

2 points

Which expression simplifies to -4?

(2) x (-2 + 4)

(-2) + (4) x (-2)

(-2) x (-2) + (4)

(-2 + 4 ) x (-2)

5.

3 points

In order to be considered proportional, it must meet what requirements?

Can be anywhere on the graph as long as its straight

Go through the origin

Move at a constant rate

Be a completely straight line

Must have a negative slope

Have a y-interecept that is not 0

6.

3 points

Select the first step of solving the expression and the final answer.

100 - 10 x (2 + 3) + 4

10

Add 3 and 4

54

454

Multiply -10 and 2

Add 2 and 3

46

Subtract 100 and 10

7.

4 points

-2(4g - 3) + 1 =

-2g +1

-4g + 3

-8g - 2

-8g +7

8.

1 point

Integer rules:

A negative divided by a negative equals a positive.

True

False

9.

3 points

Write an equation in slope-intercept form using the following information:

m = -2/3
b = 2

10.

3 points

3(y - 5) = -3

-6

4

6

5

11.

3 points

Solve for y.

-x + 2y = 4

12.

2 points

What number cubed will give you 125?

13.

3 points

What would be the first step in solving this order of operations problem?

(3 - 1) x 6 - 2

1 times 6

3 subtract 1

6 minus 2

14.

3 points

8x - 2(x + 7) = 16

15.

3 points

Select the requirements for writing a number correctly in scientific notation.

The first factor must have a base of ten to a power

The first factor must be a number between one and ten

The first factor must be multiplied by a base of ten to a power

The second factor is any number to the power of ten

16.

3 points

Lucy found 3 apples on sale for $.99. If Lucy wanted to buy 14 apples, what would it cost her? Round to the nearest cent.

17.

1 point

What is the square root of 64?

-8

+32 and -32

+8 and - 8

+ 8

18.

3 points

Solve: 4x - 2 = 6x + 24

19.

3 points

6(x + 2) = 15

20.

3 points

37 - 18 + 8s = 67

7

4

-6

6

21.

3 points

Find the slope using the two points:

(6, -5) and (-4, 2)

22.

4 points

Select all words that describe addition

difference

sum

subtract

combine

add

product

of

quotient

plus

23.

3 points

-7b = 21

24.

3 points

44 = 14 - 2a

25.

1 point

When you are multiplying exponents with the same base, you ____ the exponents.

26.

2 points

Write the following correctly in scientific notation:

.0093

9.3 x 10^-3

93 x 10^-2

9.3 x 10^3

.93 x 10^-3

9 x 3^-10

27.

2 points

Which of the following is in the correct order from GREATEST to LEAST?

-1, -4, 0, 4, 7

7, 4, 0, -2, -5

7, 4, 0, -2, -1

-5, -2, 0, 4, 7

28.

3 points

Combine like terms.

4x + 2(x + 1)

6x + 2

6x + 1

8x

7x + 1

6x

29.

2 points

Select the equation that represents slope-interecept form.

y = mx

y = bx + m

y = mx + b

y = mx - b

30.

1 point

When you have a number to the zero power, the number equals ____.

31.

3 points

Solve the proportion:

4 to x = 5 to 15

32.

2 points

If an exponent is negative in the numerator, you must place it in the _____________ as a ___________.

denominator, negative

bottom, negative

numerator, positive

denominator, positive

33.

1 point

The letter m represents the ___________ in the equation y=mx+b.

34.

1 point

When you are dividing exponents with the same base you ______ the exponents

35.

3 points

(4^3)^2

Four cubed raised to the second power equals _____.
Select all that apply.

1024

4^5

4096

12^2

4^6

36.

3 points

Solve: 5x + 4 = -21

37.

1 point

An undefined slope looks like a ______________ line.

parallel

vertical

horizontal

perpendicular

38.

3 points

Find the slope using the two points:

(5, -2) and (4, 1)

39.

2 points

WITHOUT USING A CALCULATOR, solve:

32 ÷ 2 - 3 x 2 + 1

40.

3 points

Applying the distributive property, which expression below is equivalent to the expression

4(20 + 8)

80 + 32

80 + 8

20 + 8

20 + 32

41.

3 points

Write in standard form:

2.34 x 10^4

42.

3 points

Write the expression in exponential form.

(a)(a)(a)(a)(a)

5a

a^5

5^a

a^4

43.

3 points

Select the correct expression/equation being described.

The difference of a number and 6 totals 12.

12 - 6 = x

x - 6 = 12

12 + x = 6

x + 6 = 12

6 - x = 12

44.

1 point

A negative multiplied by a _________ makes a positive.

45.

3 points

There are several ways to write ratios.
Select the possible ways of correctly writing ratios below:

4 - 5

1 & 3

1/2

6 to 7

1 and 2

3 : 4

5 x 2

4%

46.

2 points

What is the square root of 500 to the nearest integer?

21

22

20

23

47.

3 points

Combine like terms:

5x + 3 - 2x + 7

48.

3 points

Simplify.

(3g^2)(5g)(g)

15g^4

9g^4

15g^2

8g^2

49.

1 point

What is the opposite of -4?

-4

+4

0

-8

50.

3 points

2x - 26 = 10