Quiz about CCA: Mid Year Review

Question 1

If a system of equations has no solution, what does the graph look like?

Accepted Answer

parallel lines

Answer

intersecting lines

Answer

skew lines

Answer

intersecting lines

Question 2

How many solutions does this system of equations have?

Accepted Answer

Infinitely Many Solutions

Answer

One Solution

Answer

No solution

Answer

Two Solutions

Question 3

If a system of linear equations has one solution, what does this mean about the two lines?

Accepted Answer

Intersecting lines

Answer

Parallel lines

Answer

the same line

Question 4

Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes.  Which system of equations represents the situation?

Accepted Answer

3x + 2y = 315
2x + 4y = 450

Answer

3x + 2y = 450
2x + 4y = 315

Answer

2x + 2y = 315
3x + 4y = 450

Question 5

Some students want to order shirts with their school logo. One company charges $9.65 per shirt plus a setup fee of $43. Another company charges $8.40 per shirt plus a $58 fee. Which equation represents the number of shirts when both companies charge the same amount?

Accepted Answer

y = 9.65x + 43
y = 8.40x + 58

Answer

y = 9.65 + x
y = 8.40 + x

Answer

y =9.65x
y = 8.40x

Answer

y = 9.65x - 43
y = 8.40x - 58

Question 6

Solve for x and y.
y = 2/3x - 2
y = -x + 3

Accepted Answer

(3,0)

Answer

(0,3)

Answer

(0,-3)

Answer

(-3,0)

Question 7

Write the equation of the line with slope 4 through the point (-2, 5).

Accepted Answer

y = 4x + 13

Answer

y = 4x - 13

Answer

y = 4x - 3

Answer

y = 4x + 3

Question 8

Write the equation of the line through the points (-6, -19) and (2, 5).

Accepted Answer

y = 3x - 1

Answer

y = -7/2x + 12

Answer

y = 3x + 11

Answer

y = -7/2x - 40

Question 9

Write the equation of the line through the points (4, 5) and (12, 9).

Accepted Answer

y = 1/2x + 3

Answer

y = 2x - 3

Answer

y = 1/2x +7

Answer

y = 2x - 15

Question 10

Write an equation for the line shown by counting the slope and identifying the y-intercept.

Accepted Answer

y = -1/2x + 2

Answer

y = -2x + 2

Answer

y = 2x + 2

Answer

y = 1/2x- 2

Question 11

What is the equation of this line?

Accepted Answer

x=5

Answer

y=5

Answer

y=5x

Answer

x=-5

Question 12

4r^-3 * 2r²

Accepted Answer

8 -- r

Answer

8r

Answer

4 -- r6

Answer

16x6

Question 13

(2/5)-2

Accepted Answer

25/4

Answer

4/25

Answer

25

Answer

4

Question 14

(3x⁴y³z⁵)³

Accepted Answer

27x¹²y⁹z¹⁵

Answer

12x¹²y⁹z¹⁵

Answer

9x¹²y⁹z¹⁵

Answer

3x¹²y⁹z¹⁵

Question 15

Anything raised to a power of zero is always:

Accepted Answer

1

Answer

0

Answer

itself

Answer

negative

Question 16

According to exponent rules, when we raise an exponential expression to a power we _______ the exponents.

Accepted Answer

multiply

Answer

add

Answer

subtract

Answer

divide

Question 17

According to exponent rules, when we multiply exponential expressions we _______ the exponents.

Accepted Answer

add

Answer

subtract

Answer

multiply

Answer

divide

Question 18

a³b(ab)²=

Accepted Answer

a5b3

Answer

a6b4

Answer

a2b2

Answer

a9b6

Question 19

Question 19.

Accepted Answer

8x4

Answer

8x8

Answer

6x4

Answer

6x8

Question 20

c + 11/20 = 3/4

Accepted Answer

1/5

Answer

4/20

Answer

2/5

Answer

4/21

Question 21

Question 21.

Accepted Answer

7

Answer

1/7

Answer

47/36

Answer

23

Question 22

Simplify:
(x-7)²

Accepted Answer

x2-14x+49

Answer

x2-49

Answer

x2+49

Answer

x2-14x-49

Question 23

Solve for a.

Accepted Answer

a = w/p

Answer

a = pw

Answer

a = p/w

Answer

a = w + p

Question 24

Solve for y:
8x + 4y= 16

Accepted Answer

y = -2x + 4

Answer

y = -8x + 16

Answer

y = 2x -4

Answer

y = -8x + 12

Question 25

Solve the literal equation for the given variable.

Accepted Answer

2A/h

Answer

2/(h)

Answer

2Ah

Answer

Ah/2

Question 26

Which expression represents the value of x in the equation:
dx + e = f

Accepted Answer

x = (f - e)/d

Answer

x = (f + e)/d

Answer

x = d/(e - f)

Answer

x = d/(e + f)

Question 27

What is the slope?

Accepted Answer

1/2

Answer

2

Answer

1

Answer

1.5

Question 28

Write the equation of the line.

Accepted Answer

y= -3x-3

Answer

y= -1x-3

Answer

y= -3x-1

Answer

y=-1/3x-1

Question 29

10(h+1)-4=76

Accepted Answer

h=7

Answer

h=10

Answer

h=4

Answer

h=76

Question 30

What is the domain?

Accepted Answer

{-4, -1, 0, 2, 7}

Answer

{-5, -4, -1, 0, 1, 2, 4, 7}

Answer

{-5, 0, 1, 2, 4}

Answer

{5}

Question 31

-21, -16, -11, -6, ...

Is this sequence arithmetic, geometric, or neither?

Accepted Answer

arithmetic (common difference d = 5)

Answer

geometric (common ratio r = 5)

Answer

neither (no common difference OR common ratio) neither (no common difference OR common ratio)

Question 32

Which of the following is not an arithmetic sequence?

Accepted Answer

2, 4, 8, 16

Answer

1/2, 1, 3/2, 2

Answer

11, 14, 17, 20

Answer

5, 2, -1, -4

Question 33

Write the recursive formula for 4, 8, 12....

Accepted Answer

a_n=a_n-1+4

Answer

a_n=a_n-1-7

Answer

a_n=a_n-1-4

Answer

a_n=a_n-1+3

Question 34

Write the recursive formula of 13, 9, 5...

Accepted Answer

a_n=a_n-1-4

Answer

a_n=a_n-1+3

Answer

a_n=a_n-1-5

Answer

a_n=a_n-1+4

Question 35

Find the 7th term in the sequence of 6, 13, 20...

Accepted Answer

48

Answer

46

Answer

42

Answer

36

Question 36

Solve for x and y
3x + 2y = 16
7x + y = 19

Accepted Answer

(2,5)

Answer

(-2,5)

Answer

(-2,-5)

Answer

(2,-5)

Question 37

Solve for x and y
y = 2x + 1
y = 4x - 1

Accepted Answer

(1,3)

Answer

(-1,-3)

Answer

(-1,3)

Answer

(3,1)

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