Math 7 Module 4.1-4.2 Practice

Front

What is the unit cost per pizza if 15 pizzas cost $97.50?

Back

$6.50 per pizza

Front

Write the equation for a proportional relationship where y is three times x.

Back

Front

Is the relationship proportional if k is not constant?

Back

No, it is not proportional because k is not constant.

Front

Back

Front

How much does Ilana make per hour if she made $45 for 6 hours of babysitting?

Back

$7.50 per hour

Front

What is the formula to find the unit cost?

Back

Unit Cost = Total Cost / Number of Units

Front

Define proportional relationship in mathematics.

Back

A relationship where two quantities maintain a constant ratio.

Front

What does the constant of proportionality represent?

Back

It represents the ratio between two proportional quantities.

Front

If y varies directly with x, what is the form of the equation?

Back

Front

How do you determine if a relationship is proportional using a table of values?

Back

Check if the ratios of corresponding values are constant.