DCP #2 Review

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

Front

What does the equation y = 75x represent?

Back

It represents a proportional relationship because y is directly proportional to x.

Front

How do you calculate simple interest?

Back

Simple interest can be calculated using the formula: Interest = Principal × Rate × Time.

Front

If Brandon invests $2,500 at 4.25% for 3 years, how much interest does he earn?

Back

Brandon earns $318.75 in interest.

Front

What does it mean if a graph passes through the origin?

Back

If a graph passes through the origin, it indicates a proportional relationship between the variables.

Front

What is the significance of the y-intercept in a graph?

Back

The y-intercept is the point where the graph crosses the y-axis, indicating the value of y when x is zero.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is when the ratio between two quantities is not constant.

Front

How can you tell if a graph is non-proportional?

Back

A graph is non-proportional if it does not pass through the origin.

Front

What is the formula for finding the slope of a line?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What does a positive slope indicate about a relationship?

Back

A positive slope indicates that as one variable increases, the other variable also increases.