Independent & Dependent Review W/ Inequalities

REVIEW: A mathematical sentence that contains the symbols > , < , ≥, or ≤ is called an ____________.

• inequality

• equation

• equal sign

• inverse

REVIEW: Pairs of operations that undo each other are called _____________________________.

• variables

• equations

• inverse operation

• inequality

REVIEW: Which inequalities listed in the table include the number 5 in their solution set?

• Only inequality A

• Only Inequality C

• Inequalities A and C

• Inequalities B and C

REVIEW: Which inequality represents the solution set

{3, 4, 5, 6…}?

• r < 2

• r > 2

• r ≤ 2

• r ≥ 2

A researcher wants to find out how watching different types of movies affects a person's blood pressure. One group watches scary movies for two hours, another group watches comedy movies for two hours, and one group sits in silence for two hours. At the end of two hours, the researcher monitors each person's blood pressure. (Select the correct Independent & Dependent Variables below.)

• Independent- Type of Movie/ Silence & Dependent- Blood Pressure

• Independent- Blood Pressure & Dependent- Type of Movie/ Silence

Mike reads 30 pages a day. What are the independent and dependent variables?

• Independent- total pages read & Dependent- # of days spent reading

• Independent- # of days spent reading & Dependent- total pages read

Bags of candy cost $2 each. As the number of bags goes up, the total cost goes up. The independent variable is shown below. What are the independent and dependent variables?

• Independent- # of Bags Sold & Dependent- Total Cost of Bags of Candy

• Independent- Total Cost of Bags of Candy & Dependent- # of Bags of Candy sold

Which equation best represents the relationship between the x and y shown in the table?

• y = x+2

• y = 2x

• y = 4x + 1

• y = 5x + 1

Identify the Independent and Dependent Variables from the graph.

• Independent- # of Pennies & Dependent- Change in Volume

• Independent- Change in Volume & Dependent- # of Pennies

Select the equation that represents the relationship in the graph.

• y = x + 6

• y = x - 6

• y = x/6

• y = 6x