End of Unit 2 Review

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two quantities that are directly proportional to each other. It can be found by dividing one quantity by the other.

Front

If the cost of 4 pounds of grapes is $24.36, how do you find the cost per pound?

Back

To find the cost per pound, divide the total cost by the number of pounds: $24.36 ÷ 4 = $6.09.

Front

What does the point X represent on a distance-time graph?

Back

The point X represents the distance traveled by an object over a specific time period, indicating speed and travel time.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken: Average Speed = Total Distance / Total Time.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What does the slope of a line represent in a graph?

Back

The slope of a line represents the rate of change between the two variables plotted on the graph.

Front

If y = 2x, what is the constant of proportionality?

Back

The constant of proportionality is 2, meaning for every unit increase in x, y increases by 2.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where their ratio remains constant.

Front

How do you find the equation of a line given a slope and a point?

Back

Use the point-slope form: y - y1 = m(x - x1), where (x1, y1) is the point and m is the slope.

Front

What does the term 'directly proportional' mean?

Back

Directly proportional means that as one quantity increases, the other quantity increases at a constant rate.