1 / 9

Direct and Inverse Variation Review

Direct and Inverse Variation Review. MATH 7. What am I? direct, inverse, or both. As one variable increases, the other variable decreases. The graph is always a straight line. 3. The equation is. What am I? direct, inverse, or both.

rory
Télécharger la présentation

Direct and Inverse Variation Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Direct and Inverse Variation Review MATH 7

  2. What am I?direct, inverse, or both • As one variable increases, the other variable decreases. • The graph is always a straight line. 3. The equation is

  3. What am I?direct, inverse, or both • As one variable decreases, the other variable decreases. • The equation is • The graph is never a straight line.

  4. What am I?direct, inverse, or both • It is a proportional relationship between 2 variables. • As one variable increases, the other variable increases.

  5. What am I?direct, inverse, or both • When x and y are multiplied, the result is a constant (k). 10. When y is divided by x, the result is a constant (k).

  6. Solve each problem: • X varies inversely with y. If x = 10 when y = 2, what is the value of y when x = 4? 2. X varies inversely with y. If x = 7 when y = 12, what is the value of y when x = 4?

  7. Solve each problem: • y varies directly with x. If y = 16 and x = 2, what is the value of y when x = 5? 4. y varies directly with x. If y = 36 and x = 4, what is the value of y when x = 5?

  8. Solve each problem: • Alex has $28 to spend on cd’s and dvd’s. If he buys 4 cd’s, he will be able to buy 7 dvd’s. How many cd’s would he be able to buy if he only bought 14 dvd’s?

  9. Find the constant: • X and y vary inversely: y=2.5 and x=4 • X and y vary directly: y=25 and x=2

More Related