1 / 8

Proportions

Proportions. Learning Objectives. Define proportionality and apply it to problems. Relational Notation. Mathematics often describes relationships between two quantities using relational operators. Relational Notation. Examples: A < B (“A less than B”)

binta
Télécharger la présentation

Proportions

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. Proportions

  2. Learning Objectives • Define proportionality and apply it to problems

  3. Relational Notation Mathematics often describes relationships between two quantities using relational operators.

  4. Relational Notation • Examples: A < B (“A less than B”) X Y (“X greater than or equal to Y”) V r3 (“V proportional to radius cubed”) • See Table 2.2 of Mathematics Supplement for other relational operators.

  5. Direct Proportionality • The operator indicates proportionality between quantities. Example: C r (circumference directly proportional to circle radius) C = 2 r (2 is the proportionality constant)

  6. Direct Proportionality Example: A r2 (circle directly proportional to radius squared) A = r2 ( is the proportionality constant)

  7. Inverse Proportionality Example: (y is inversely proportional to x squared.) (k is theproportionality constant)

  8. Other Relational Notations Example: A = f (b,h) or A = A (b,h) “The area A, is a function of the base, b, and the height, h.” Mathematically, A h b

More Related