AM7 Qtr 2 Checkpoint Review

Front

What is an independent variable?

Back

An independent variable is a variable that represents the input or cause in a relationship, which can be changed or controlled in an experiment or equation.

Front

In the context of Paco's daughter, which variable is independent: c (number of costumes) or d (number of dances)?

Back

d = the number of dances is the independent variable.

Front

What is a dependent variable?

Back

A dependent variable is a variable that represents the output or effect in a relationship, which depends on the independent variable.

Front

In Sarah's birthday treats scenario, which variable is independent: t (number of treats) or s (number of students)?

Back

s = the number of students is the independent variable.

Front

Write the equation for the total cost (C) to rent a paddle boat for h hours, given a $15 deposit and $2 per hour.

Back

C = 2h + 15

Front

What does it mean for a relationship to be proportional?

Back

A proportional relationship means that two quantities increase or decrease at the same rate, represented by a constant ratio.

Front

In the painter's scenario, is the relationship proportional or non-proportional?

Back

The relationship is non-proportional because there is an initial fee in addition to the hourly charge.

Front

What is the measure of ∠3 if ∠2 is 83° and they are supplementary angles?

Back

∠3 = 97° (since supplementary angles add up to 180°).

Front

Define a linear equation.

Back

A linear equation is an equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

What is the formula for calculating the total cost of renting a service with a fixed fee and a variable fee?

Back

Total Cost = Fixed Fee + (Variable Fee per unit * Number of units used).