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Algebra 2 Ch. 2

Ch. 2

QuestionAnswer
Direct Variation Function a function with a formula of the form y = kx (x is to the power of n) and k cannot equal zero and n must be greater than 0
Inverse Variation Function a function with a formula of the form y = k/x (x is to the power of n). k cannot = 0 and n must be > 0
Slope Slope is rise over run. The slope of a line must be through two points, (x1, y1) and (x2, y2). It is found by Subtracting y1 from y2 and dividing that by x2 - x1
Rate of Change The slope of a line is the rate of change of y with respect to x determined by two points on the line.
Mathematical Model a mathematical model for a real situation is a description of that situation using the language and concepts of mathematics.
Combined Variation When direct and inverse variations occur together, the situation is called combined variation.
Law of the Lever states that to balance a given person seated on a seesaw, the distance d the other person is from the fulcrum is inversely proportional to that person's weight w. d = k/w
Hyperbola The graph of every function with an equation of the form y = k/x
Created by: Nickp2396
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