G7 Lesson 1.9--Direct Variation

Front

What ordered pair does a direct variation always go through when graphed? Options: (0, 0), (1, 0), (0, 1), (1, 1)

Back

(0, 0)

Front

What is another name for k?

Back

slope

Front

What does the Direct Variation Equation look like?

Back

Y= kx

Front

Determine if the relationship between the two quantities is a direct variation.

Back

Yes, the constant of variation is 2.

Front

Determine if the relationship between the two quantities is a direct variation.

Back

No, there is no constant of variation.

Front

Determine if the relationship between the two quantities is a direct variation.

Back

Yes, the constant of variation is 8.

Front

Determine if the relationship between the two quantities is a direct variation.

Back

No, there is no constant of variation.

Front

Determine if there is a constant of variation in the equation y = 9.50x, where y represents the number of dollars Marty paid for x movie tickets.

Back

The constant of variation is 9.50. This means that Marty paid $9.50 for each movie ticket.

Front

Determine if there is a constant of variation in the equation y = 0.10x + 45, which represents the cost y of a cell phone plan when x text messages are sent and received.

Back

There is no constant of variation. The cost does not vary directly with the number of text messages sent and received.

Front

Determine if there is a constant of variation in the equation y = 24x, which represents the number of bottles of water y in x packages.

Back

The constant of variation is 24. This means that there are 24 bottles of water in each package.