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# Algebra2Chap2Clark

### Chapter 2

Area of a circle A=πr^2
Direct Variation y=kx
Indirect Variation y=k/x^n
Slope Rise/Run y2-y1/x2-x1
When a parabola opens up, it has a: minimum point
When a parabola opens down, it has a: maximum point
Equation for parabola opening up y=x^2
Equation for parabola opening down y=-x^2
Hyperbola Equation y=k/x
Discrete Points Points not connected on a graph
Asymptote Functions on a hyperbola graph, which come infinetly close to each axes of the graph without ever touching.
Combined Variation y=kx/z
Joint Variation y=kxz
Volume of a cone V=1/3πr^2
Created by: KarenBrinker