- Direct Variation
- Inverse Variation
- Combined Variation
- Joint Variation
Also included are explanations regarding the terminology of the phrase "constant of variation", as well as a real world example problem:
EXAMPLE: In banking, the Interest “I” in a person’s account is calculated with a constant rate “r”, multiplied by the Principal amount of money deposited “p” and the amount of time the money is in the account “t”.
I = prt - Describe the combined variation that is modeled here.
*Note: A moderate amount of algebra understanding is implied regarding this section. Suggested for a range of mid-Algebra 1 to early Algebra 2.
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