Free Printable 9CT Dino Day

1.

Solve by substitution. Show all work

a)

(2, 7)

b)

(7,6)

c)

(-6,1)

d)

No Solution

2.

Solve by using substitution method.

a)

(2, 7)

b)

(0, 1)

c)

(2/5, 9/5)

d)

(2, 5)

3.

Solve by using elimination method.

a)

(3, 1)

b)

( 5, -5)

c)

(2, 5)

d)

(15, 1)

4.

For equations below, which method is easier to use? Why?

a)

Graphing, because both are already in y = mx + b form.

b)

Substitution, because one equation is already solved for y.

c)

Elimination, because both are already in ax + by = c form.

d)

None.

5.

For equations below, which method is easier to use? Why?

a)

Graphing, because both are already in y = mx + b form.

b)

Substitution, because one equation is already solved for y.

c)

Elimination, because both are already in ax + by = c form.

d)

None.

6.

For equations below, which method is easier to use? Why?

a)

Graphing, because both are already in y = mx + b form.

b)

Substitution, because one equation is already solved for y.

c)

Elimination, because both are already in ax + by = c form.

d)

None.

7.

What is the solution to the system?

a)

(0, 3)

b)

(1, -1)

c)

(-3, 1)

d)

(1, 3)

8.

What is the solution?

a)

(6, 3)

b)

(3, 6)

c)

(-6, 3)

d)

No solution

9.

How many solutions?

a)

One Solution

b)

No solution

c)

Infinitely Many Solutions

10.

What is the solution?

a)

One Solution

b)

No solution

c)

Infinitely Many Solutions

11.

The lines graphed on the coordinate grid each represent an equation. Which ordered pair represents a solution to both equations?

a)

(2, 2)

b)

(0, 4)

c)

(0, 0)

d)

((4, 0)

12.

a)

(2, -2)

b)

(2, 2)

c)

(-2, 2)

d)

(-2, -2)

13.

a)

Infinitely Many Solutions

b)

No Solution

14.

What is the solution to this system? Solve by substitution.
y= 4x + 3
2x - 3y = 21

a)

(3,-9)

b)

(-3,-9)

c)

(-3,9)

d)

(0,1)

15.

What is the solution to this system of equations? Solve by substitution or graphing.

a)

(7, -8)

b)

(-7, 8)

c)

(-7, -8)

d)

(7, 8)

16.

Solve the system of equations.
x + 5y = -27
-2x - 5y = 24

a)

(3, 6)

b)

(-3, -6)

c)

(-3, -4)

d)

(3, -6)

17.

-4x-2y=-12
4x+8y=-24

a)

(5,6)

b)

(6,-6)

c)

(6,-2)

d)

(4,-3)

18.

Solve the system by elimination.
−4x − 4y = 0
4x + 4y = 0

a)

(−6, −4)

b)

Infinite number of solutions

c)

(−6, 10)

d)

(6, 4)

19.

Solve by elimination
-12x-4y= -8
-6x-2y= -4

a)

no solution

b)

(0,0)

c)

infinite solutions

d)

(4,0)

20.

^{What is the solution?}

a)

1

b)

-2

c)

(1, 2)

d)

(1, -1)

21.

How many solutions will this system have?

a)

No solution

b)

One Solution

c)

I Don't Know

d)

Infinitely Many Solutions

22.

What is the solution to the system of equations graphed below?

a)

No Solution

b)

Infinite Solutions

c)

One Solution: (1, -2)

d)

One Solution: (-2, 1)

23.

What is the solution to the system of equations graphed below?

a)

No Solution

b)

Infinite Solutions

c)

One Solution: (0, 4)

d)

One Solution: (0, 6)

24.

What is the solution to the system of equations graphed below?

a)

No Solution

b)

Infinite Solutions

c)

One Solution: (0, 2)

d)

One Solution: (2, 6)

25.

What is the solution to the system?

a)

(0, 3)

b)

(1, -1)

c)

(-3, 1)

d)

(1, 3)

26.

Parallel Lines never intersect because...

a)

they have the same slopes.

b)

they have the same y-intercept.

c)

they have different slopes.

d)

they have different y-intercepts.

27.

What is the value of the y-coordinate of the solution to the system of equations
x-2y=1
x+4y=7

a)

1

b)

-1

c)

3

d)

4

28.

Solve the system of equations.

a)

(-23, 4)

b)

(-4, -3)

c)

(-2, -4)

d)

No solution

e)

Infinite solutions

29.

Solve by elimination
-2x + 6y = 16
-4x - 3y = 2

a)

(2,2)

b)

(-2, -2)

c)

(-2,2)

d)

(2,1)

30.

Solve using elimination.
4x + 8y = 20
-4x + 2y = -30

a)

(-7,1)

b)

(2,-5)

c)

(-2,5)

d)

(7,-1)

31.

Solve the system by elimination.

−8x − 10y = 20
−8x − 6y = −4

a)

Infinite number of solutions

b)

(6, 5)

c)

(−6, −5)

d)

(5, −6)

32.

-4x - 6y = 6
4x + 6y = -4

a)

no solution

b)

(2,0)

c)

(-4,0)

d)

(0,0)

33.

Solve the system of Equation (x,y)
−4x + 9y = 9
x − 3y = −6

a)

(-9,-5)

b)

(-5,9)

c)

(9,5)

d)

(-5,-9)

34.

Solve the system of Equation (x,y)
3x + 2y = –13
3x + 4y = 1

a)

(-9,7)

b)

(7,-9)

c)

(4,-7)

d)

(-7,-4)

35.

-4x-2y=-12
4x+8y=-24

a)

(5,6)

b)

(6,-6)

c)

(6,-2)

d)

(4,-3)

36.

4x+8y=20
-4x+2y=-30

a)

(-7,1)

b)

(2,-5)

c)

(-2,5)

d)

(7,-1)

37.

x-y=11
2x+y=19

a)

(10,-1)

b)

(-1,10)

c)

(3,-4)

d)

(6,7)

38.

-6x+5y=1
6x+4y=-10

a)

(1,-1)

b)

(0,-1)

c)

(1,1)

d)

(-1,-1)

39.

x - 2 = 2x + 1

a)

x = 3

b)

x = 6

c)

x = -3

d)

x = 5

40.

3x - 4 = x + 10

a)

x = 7

b)

x = -7

c)

x = 0

d)

x = 4

41.

x + 7 = 2x + 2

a)

x = -4

b)

x = -5

c)

x = 3

d)

x = 5

42.

5x + 1 = x + 1

a)

x = 2

b)

x = 10

c)

x= 0

d)

x = 3

43.

x + 7 = 3x + 3

a)

x = 2

b)

x = 12

c)

x = 7

d)

x = 0

44.

–2x – 11 = x + 16

a)

x = 9

b)

x = 10

c)

x = -9

d)

x = 3

45.

What is the first step in getting "x" by itself?
3x - 7 = 28

a)

subtract 7

b)

add 7

c)

multiply by 3

d)

divide by 3

46.

12=x+3

a)

x=10

b)

x=6

c)

x=12

d)

x=9

47.

2X+5x+11=53

a)

x=6

b)

x=5

c)

x=-6

d)

x=64/7

48.

a)

9

b)

8

c)

7

d)

10

49.

a)

5

b)

10

c)

-5

d)

6

50.

a)

8

b)

7

c)

6

d)

5

51.

a)

8

b)

4

c)

-8

d)

6

52.

a)

-9

b)

-8

c)

-7

d)

-6

53.

a)

-13

b)

-12

c)

-11

d)

-10

54.

$21=3+4n+5n$

a)

9

b)

$-7$

c)

6

d)

2

55.

$96=6\left(k+8\right)$

a)

$12$

b)

$8$

c)

$-4$

d)

$9$

56.

$97=-3\left(6n-5\right)-8$

a)

$-10$

b)

$16$

c)

$-5$

d)

$-2$

57.

$2x-16=2\left(1+4x\right)$

a)

$7$

b)

$-16$

c)

$-2$

d)

$-3$

58.

$-3\left(n+8\right)-4=-40-n$

a)

$11$

b)

$6$

c)

$2$

d)

$1$

59.

Solve for v.

a)

60

b)

-3

c)

15

d)

3

60.

3c + 5 = 23

a)

c = 3

b)

c = 6

c)

c = 7

d)

c = 18

61.

Solve:
8w - 8 = -4w + 16

a)

8

b)

16

c)

24

d)

2

62.

19 + a = -50

a)

a = -950

b)

a = -69

c)

a = -31

d)

a = -50/19

63.

On a recent test, a statistics professor finds that the mean and median scores are nearly equal. Which of the following could be the distribution of test scores?

a)

b)

c)

64.

Which restaurant has a greater IQR?

a)

Lucy's Steakhouse

b)

Gary's Grill

c)

They are the same

65.

Which club has the smaller spread, less variation?

a)

Cruisers

b)

Car Hops

66.

a)

Skewed Left

b)

Skewed Right

c)

Uniform

d)

Symmetric

67.

What is the interquartile range (IQR) of the data set?

a)

20

b)

25

c)

5

d)

10

68.

Which interval has the greatest number of students?

a)

48-51

b)

56-59

c)

60-63

d)

64-67

69.

The given data represents the ages of two softball teams. The data is represented by the box-and-whisker plots below.

Select all of the following statements about these data sets that are true. (Choose 2)

a)

The data sets have the same lower quartiles.

b)

Since data for Team A is skewed right, the mean is more than the median.

c)

The interquartile range for Team B is greater than Team A

d)

The data sets have the same range but different medians.

e)

The data sets have the same interquartile range but different ranges.

70.

What data value is the upper quartile (Q3)?

a)

64

b)

62

c)

66

d)

58

71.

Find the Median

a)

98

b)

93

c)

78

d)

85

72.

The dot plot represents student scores on a science test. How many students took the test?

(a)

73.

Describe the shape of the data. Select all that apply.

a)

bell-shaped

b)

skewed left

c)

skewed right

d)

symmetric

e)

uniform

74.

Describe the shape of the data. Select all that apply. (Choose 2)

a)

bell-shaped

b)

skewed left

c)

skewed right

d)

symmetric

e)

uniform

75.

How many total people have blue eyes?

a)

2

b)

12

c)

10

d)

50

76.

How many total people wore yellow?

a)

30

b)

22

c)

40

d)

62

77.

What color car is the least popular at this car dealership?

a)

Red

b)

White

c)

Blue

d)

Green

78.

How many people like both skateboards & snowmobiles?

a)

45

b)

25

c)

10

d)

80

79.

How many people purchased a hot dog and water?

a)

50

b)

62

c)

46

d)

158

80.

How many sophomores like burritos and pizza?

a)

6

b)

5

c)

11

d)

50

81.

How many students were in the survey all together?

a)

30

b)

42

c)

62

d)

72

82.

3(2c - 5)

a)

6c - 15

b)

6c + 15

c)

6c + 15

d)

-6c - 15

83.

Simplify the expression:
8(4b - 5)

a)

32b + 40

b)

32b - 40

c)

32(b - 40)

d)

84b - 85

84.

Simplify the expression:
3(4 + 7y)

a)

12 + 21y

b)

13 + 21y

c)

14 + 21y

d)

16 + 21y

85.

-5(-x + 3)

a)

5x + 15

b)

5x - 15

c)

5 - 3x

d)

3x + 5

86.

-4(8 + 7k)

a)

-32 - 28k

b)

32 + 28k

c)

12 + 11k

d)

-12 + 11k

87.

5(x+5)+5

a)

10+5x

b)

x+25

c)

5x + 30

d)

5x +25

88.

2+ 2(3x+6)

a)

9

b)

14+6x

c)

4 +6x+12

d)

16 + 6x

89.

3x-5x

a)

2x

b)

8x

c)

-2x

d)

15x²

90.

Simplify by combining like terms:
5a + 2b - 3a + 4

a)

8a + 2b + 4

b)

2a + 2b + 4

c)

8ab

d)

4ab + 4

91.

Simplify: 15x + 19 + 2x - 4

a)

17x + 15

b)

17x + 23

c)

30x + 15

d)

13x + 15

92.

-r -10r

a)

11r

b)

-11r

c)

9r

d)

-11

93.

Combine like terms
3x + 2x + 11y - 7y

a)

5x + 10y

b)

5x - 4y

c)

5x + 4y

d)

5x -10y

94.

Simplify the following expression by combining like terms:
(3b - 4) - (4b + 6)

a)

-b + 2

b)

-b - 10

c)

7b - 10

d)

7b + 2

95.

Simplify the following expression:
(5 + 4x) + (2x - 8)

a)

13 + 6x

b)

6x - 3

c)

6x - 13

d)

6x + 3

96.

Shade above or below?

y <

a)

Above

b)

Below

97.

Shade above or below?
y ≥

a)

Above

b)

Below

98.

Solid or dashed line?
Y <

a)

Solid

b)

Dashed

99.

Solid or dashed line?
Y ≥

a)

Solid

b)

Dashed

100.

a)

y < 5x + 1

b)

y > 5x + 1

c)

y ≤ 5x + 1

d)

y ≥ 5x + 1

101.

Which point below is NOT part of the solution set?

a)

(0, 0)

b)

(-10, -10)

c)

(-1, 5)

d)

(5, 20)

102.

a)

y < -x - 5

b)

y > -x - 5

c)

y ≤ -x - 5

d)

y ≥ -x - 5

103.

Which of the following equations match the given graph?

a)

x ≥ -1

b)

x ≤ -1

c)

x > -1

d)

x < -1

104.

Which of the following equations match the given graph?

a)

y ≤ -3/4 x + 3

b)

y ≥ -3/4 x + 3

c)

y < -3/4 x + 3

d)

y > -3/4 x + 3

105.

Which point below is NOT a part of the solution set?

a)

(0, 0)

b)

(0, 1)

c)

(-100, -3)

d)

(5, 10)

106.

Which point is a solution?

a)

(0, 6)

b)

(-3, 4)

c)

(1, 0)

d)

(-4, 3)

107.

Is (-2,4) a solution to the system?

a)

Solution

b)

Not a solution

108.

Which of the following is not a solution to this system of inequalities?

a)

(0,-1)

b)

(0,3)

c)

(4,0)

d)

(6,-2)

9CT Dino Day

Total questions: 108

Worksheet time: 5hrs 29mins

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