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Chapter 2
Variations and Graphs
Question | Answer |
---|---|
Constant of a Variation | k in the formula y=kx^2 |
Direct-Variation Function | a function with a formula of the form y=kx^2 |
Inverse-Variation Function | a function with the formula y=k/x^n |
Fundamental Theorem of Variation | a. If y varies directly as x6n and x is multiplied by c, then y is multiplied by c^n b. if y varies inversely as x^n and x is multiplied by a nonzero constant c, then y is divided by c^n |
Slope | rise/run, found by y2-y1/x2-x1 |
Branches | two separate parts of a hyperbola |
Asymptote | line that a graph approaches but never reaches |
Combined Variation | when direct and inverse variations occur together |
Joint Variation | when one quantity varies directly as the product of two or more independent variables, but not inversely as any variable |