Module 4 Part 2 Review

Front

What is the rate of dollars per cracker for Value Grocery Mart? (round to the nearest penny)

Back

$1.67

Front

Which situation can be represented by the equation y = 74x?

Back

A company uses a total of y gallons of water at a rate of 74 gallons per hour for x hours.

Front

What is the label for the independent variable in a relationship?

Back

Boxes Sold

Front

What equation can be used to find t, the cost in dollars of downloading n songs if one song costs $0.99?

Back

t = 0.99n

Front

What does the equation y = 3.5x represent in terms of a relationship between x and y?

Back

It represents a linear relationship where y increases by 3.5 for every increase of 1 in x.

Front

Define independent variable.

Back

An independent variable is the variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

Define dependent variable.

Back

A dependent variable is the variable being tested and measured in a scientific experiment.

Front

What is a linear equation?

Back

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

Front

What does the slope in a linear equation represent?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable.

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the value of y when x is 0, representing where the line crosses the y-axis.