Unit 3 Review - Bryan

Front

What is the equation for a proportional relationship in the form y=kx?

Back

The equation represents a direct variation where y is directly proportional to x, with k being the constant of proportionality.

Front

What is the unit cost or price per gallon if Gabby spent $44.10 for 14 gallons of gas?

Back

$3.15

Front

What does the constant of proportionality represent in a rate problem?

Back

It represents the ratio of the dependent variable to the independent variable, indicating how much one variable changes in relation to another.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Front

What does the point (7, 56) represent in a graph showing total markers in packages?

Back

The number 56 represents the number of markers in 7 packages.

Front

How do you calculate the unit cost from total cost and quantity?

Back

Unit cost = Total cost / Quantity.

Front

What is the formula to find the constant of proportionality from a table of values?

Back

Constant of proportionality (k) = y/x for any pair of (x, y) values.

Front

What does a proportional relationship look like on a graph?

Back

A proportional relationship is represented by a straight line that passes through the origin.

Front

If y=8x, what is the value of y when x=5?

Back

y=40.

Front

What is the significance of the slope in a proportional relationship?

Back

The slope represents the constant of proportionality, indicating the rate of change between the two variables.