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CLEP Precalculus: Functions
CLEP Precalculus: Inequalities
CLEP Precalculus: Linear Equations
CLEP Precalculus: Rational Equations
CLEP Precalculus: Quadratic Equations
CLEP Precalculus: Polynomials
CLEP Precalculus:Piecewise Functions
CLEP Precalculus:Three D Shapes
CLEP Precalculus: Trigonometry
CLEP Precalculus: Scientific Calculators
Free Online CLEP Precalculus Courses
A function relates an input to an output. It is like a machine that has an input and an output. And the output is related somehow to the input. "f(x) = ... " is the classic way of writing a function.
Exponents and Logarithms
Exponents are shorthand for repeated multiplication of the same thing by itself. Logarithms are used in many areas of science and engineering in which quantities vary over a large range.
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