Open Up Resources Unit 4 Test Review

Front

What is the constant of proportionality?

Back

The constant of proportionality is a constant ratio or unit rate of two variables. In the context of speed, it represents the speed in miles per hour.

Front

How do you calculate percent increase?

Back

Percent increase is calculated by taking the difference between the new value and the original value, dividing by the original value, and then multiplying by 100.

Front

What is a markup?

Back

A markup is the amount added to the cost price of goods to cover overhead and profit. It is usually expressed as a percentage of the cost price.

Front

How do you determine if a table is proportional?

Back

A table is proportional if the ratio of the values in one column to the corresponding values in another column is constant.

Front

What is sales tax?

Back

Sales tax is a tax imposed by the government on the sale of goods and services, usually calculated as a percentage of the purchase price.

Front

How do you calculate the total cost including sales tax?

Back

To calculate the total cost including sales tax, multiply the original price by the sales tax rate, then add that amount to the original price.

Front

What is the formula for calculating the price after a markup?

Back

The price after a markup can be calculated using the formula: Final Price = Original Price + (Original Price × Markup Percentage).

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if two quantities maintain a constant ratio, meaning as one quantity increases, the other increases at a consistent rate.

Front

How do you find the constant of proportionality from a table?

Back

To find the constant of proportionality from a table, divide the values of one variable by the corresponding values of the other variable and check for a consistent result.

Front

What is the percent increase from 1250 to 2000?

Back

The percent increase from 1250 to 2000 is 60%.