BELLRINGERS3rd Nine Weeks

JANUARY 5, 2011

Solve the equations.1.

2.

233)1(2 xx

yyyy 7101185

JANUARY 6, 2011

Solve the equations.1.

2.

59233)32(6 xxx

yyy 91762

JANUARY 7, 2011

Solve the equations.1.

2.

1753

2x

97

85

y

JANUARY 12, 2011

Use a proportion to find the value of x.

x 6

8

12

JANUARY 13, 2011

Joe Schmoe’s backyard is 30 feet wide and 42 feet long. Inside he has a fenced in area that is proportional to his entire backyard. If the dog’s yard is 21 feet long, how wide is it? Hint: draw a picture.

JANUARY 18, 2011

Solve the proportions.1.

2.

3.

1009

2 x

100

15

60

x

100

2811

x

JANUARY 19, 2011

Convert the ratios into percents.1.

2.

3.

9

3

60

75

20

11

JANUARY 24, 2011

Academy Sports and Outdoors is having a store-wide sale. They are discounting everything by 30%.1. If the original cost of new Nike LunarFly running

shoes is $89.99, what is their new price?

2. If the original cost of Under Armor cleats is $94.99, what is their new price?

JANUARY 31, 2011

1. I bought boots for $50, but they were originally $75. For what percent were they discounted?

2. Jimmy bought a new fishing rod for $20, but it was originally $50. For what percent was it discounted?

FEBRUARY 1, 2011

1. Name three ways to express a relation.

2. Write a sentence explaining the difference between the domain and the range of a relation.

FEBRUARY 7, 2011

Find the range of the relation for the given domain.1. domain: {-2, 0, 1, 5};

2. domain: {-5, -3, -1, 2};

52 yx

yx 3126

FEBRUARY 8, 2011

Find the range of the function for the given domain.1. domain: {-5, 0, 9, 10};

2. domain: {-6, -4, 4, 5};

73 xxf

12

x

xf

FEBRUARY 9, 2011

Find the range of the function for the given domain.1. domain: {-4, -2, 9, 15};

2. domain: {-6, 0, 1, 12};

7 xxf

23

x

xf

FEBRUARY 15, 2011

1. If you can go 67.5 miles on 3 gallons of gas, how far can you go with 10 gallons of gas?

2. How much will 25 meters of copper wire weigh if 3.4 meters of the same copper wire weighs 0.442 kilograms?

FEBRUARY 16, 2011

Determine if the equation is direct variation. Verify your answer with a graph.

3x

y

FEBRUARY 22, 2011

Graph the line that connects the two points. Then find the slope of the line.1. (3, 4) and (-1, 8)

2. (-2, -4) and (3, -5)

FEBRUARY 23, 2011

Graph the line that connects the two points. Then find the slope of the line.1. (-1, 2) and (0, 0)

2. (5, 3) and (5, -3)

FEBRUARY 24, 2011

Determine the given point on the line and the line’s slope. Then use them to graph the line.1.

2.

32

12 xy

xy 34