Unit 5 Review

Writing Inequalities

100

What inequality symbol means "at least"

greater than or equal to

200

Write an inequality to represent the following statement: "x is no more than 30"

x < 30

300

Write an inequality to represent the following statement: "I need more than $5 to buy that shirt"

x > 5

400

Write an inequality to represent the following:

"The product of a number and 4 is at most 15"

4x < 15

500

Write an inequality for the following statement:

"24 is bigger than the sum of a number and 8"

24 > n + 8       or       n + 8 < 24

Solving Inequalities

100

Solve the inequality. To get the points, you must write the full inequality statement (the variable, the inequality symbol, and the answer):

x + 8 > 13

x > 5

200

Solve the inequality. To get the points, you must write the full inequality statement (the variable, the inequality symbol, and the answer):

y - 15 < 22

y < 37

300

Solve the inequality. To get the points, you must write the full inequality statement (the variable, the inequality symbol, and the answer):

5x < 60

x < 12

400

Solve the inequality. To get the points, you must write the full inequality statement (the variable, the inequality symbol, and the answer):

y/8 > 9

y > 72

500

Solve the inequality. To get the points, you must write the full inequality statement (the variable, the inequality symbol, and the answer):

56 < 7x

8 < x     or     x > 8

Solving Equations

100

Solve the following equation: x + 4 = 10

x = 6

200

Solve the following equation: 3y = 18

y = 6

300

Solve: 29 = 18 + x

x = 11

400

Solve: x - 11 = 25

x = 36

500

Solve the following equation: 16 = x/3

x = 48

Graphing Inequalities

100

Graph the following inequalities: x < 18

open dot, to the left

200

Graph the following inequalities: x > 6

open dot, do the right

300

Solve and graph the following inequalities: 3x < 12

x < 4; closed dot, to the left

400

Solve and graph the following inequalities: 30 > 6x

x < 5; closed dot, to the left

500

Solve and graph the following inequalities: 10 < y/4 

y > 40; open dot, to the right

Independent/Dependent Variables

100

Identify the independent variable in the following situation: 

"The stronger the hurricane, the more damage there is to the houses"

The strength of the hurricane

200

Identify both the independent and dependent variables: 

They did an experiment to see if the type of soil determined how much the plants grew.

Independent: type of soil

Dependent: plant growth

300

Identify the independent & dependent variables:

At the food stand, each slice of pizza is $3.

Independent: amount of slices

Dependent: total cost

400

Write an equation to represent the following situation:

For every month you're subscribed to Netflix, you have to pay $8.99

y = 8.99x

500

Write and equation & create a table for the following situation (your table only needs to be 4 rows).

For every inch it rained, it flooded 3 inches

y = 3x

Table:

x       y

1      3

2      6

3      9

4      12