Constant Rate of Change/ Constant of Proportionality

Front

Formula for Constant of Proportionality?

Back

y = kx

Front

Graph representing the relationship between y (number of users) and x (number of days) for an online game increasing by 500 users each day.

Back

Front

Equation for total cost of x pounds of cheddar cheese at $4.25 per pound.

Back

y = 4.25x

Front

Caroline's cell phone plan cost $32 per month. Which table shows the sum of the amounts that Caroline will pay for her cell phone plan over the next 4 months?

Back

Front

Which of these does NOT represent the distance a car travels when going 55 miles per hour?

y = 55 x

,

In 3 hours the car will travel a distance of of 160 miles.

Back

In 3 hours the car will travel a distance of of 160 miles.

Front

The graph represents the linear relationship between the number of books Layla has read and the number of months she has been a member of a book club. Which of these statements is supported by the rate of change of this relationship?

Options:

Layla read 2 books in the first 3 months she was a member of the book club.

,

Layla read 3 books in the first 2 months she was a member of the book club.

,

Layla read 3 books in the first 4 months she was a member of the book club.

,

Layla read 4 books in the first 3 months she was a member of the book club.

Back

Layla read 3 books in the first 2 months she was a member of the book club.

Front

A rate is...

Back

a ratio that compares two quantities of different units.

Front

A unit rate is...

Back

a rate when the second quantity in the comparison ( aka the denominator ) is a unit of one.

Front

A proportion is...

Back

two ratios set equal to one another.

Front

450 inches of steel wire for 300 springs. How many inches for 1 spring?

Back