Exam One Study Sheet

# Exam One Study Sheet - Chapter Two Equations statement...

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Chapter Two Equations –statement where two expressions are equal Slope – change in the dependent variable divided by the change in the independent variable o If X changes by one units, Y changes by m units o M is a parameter and multiplier Intercepts o X-Intercept: plug in 0 for Y o Y-Intercept: plug in 0 for X Chapter Three Function – mathematical rule that assigns for each value of Y, only one variable of X o Value of Y depends on the value of X o Rational function: f(x)= g(x) / h(x) o Composite functions: o Explicit function: all variables, except y, are on right hand side Quadratics o Quadratic formula o Vertex: ( - , - ) b2a f b2a Chapter Four System of Equations o N equations with v variables = dimensions of n x v If n=v then a exactly constrained system If n < v under constrained system; unlimited or no solutions If n> v then an over constrained system o If equations are parallel the equations are inconsistent o

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Exam One Study Sheet - Chapter Two Equations statement...

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