Direct and Inverse Variation

Presentation

•

Mathematics

•

6th - 8th Grade

•

Medium

Aimee Norman

Used 14+ times

FREE Resource

7 Slides • 11 Questions

Direct and Inverse Variation

As the first unit goes UP the second unit goes UP

OR

As the first unit goes DOWN the second unit goes Down

As the first unit goes UP the second unit goes DOWN

OR

As the first unit goes DOWN the second unit goes UP

Multiple Choice

What type of variation does this scenario represent?
You and some friends decide to buy 2 pizzas and split the cost evenly.
The number of friends who are sharing the cost of the pizzas
and the amount of money you pay for your share.

direct variation

inverse variation

joint variation

none of these

Multiple Choice

What type of variation does this scenario represent?
The outside temperature
and the number of layers of clothes you need to wear outside to feel comfortable

direct variation

inverse variation

joint variation

none of these

Multiple Choice

What type of variation does this scenario represent?
The length of time you charge your cell phone
and the battery power

direct variation

inverse variation

joint variation

none of these

Multiple Select

Which of the following represents inverse variation?

y = kx

y = k/x

y = x/k

k=xy

Multiple Select

Which of the following represents direct variation?

y = kx

y = k/x

y = x/k

k=y/x

Does a table show direct or inverse variation?

Use the formulas to determine if a table shows direct or inverse variation

Multiple Choice

Is the given table a direct or inverse variation? What is the constant of variation?

Direct, 12

Inverse, 12

Direct, 1/12

Inverse, 1/12

Multiple Choice

Is the given table a direct variation? If so, what is the constant?

Yes; 1/4

Yes; 4

Yes; 2

Multiple Choice

Is the given table a direct variation? If so, what is the constant of variation?

Yes; 1/3

Yes; 3

Yes; 5

Determine if a Graph shows Direct Variation

2 SIMPLE requirements for a graph to show direct variation

Straight line
through the origin (0,0)

Multiple Choice

Is this a direct variation?

yes

Multiple Choice

Direct Variation?

yes

Multiple Choice

Which of the given graphs is a direct variation?

Direct and Inverse Variation

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