Khan Academy

Graphs of two-variable inequalities word problem (K-A)

Interpreting two-variable inequalities word problem (K-A)

Modeling with systems of inequalities (K-A)

Solving systems of inequalities word problem (K-A)

Solving two-variable inequalities word problem (K-A)

Writing systems of inequalities word problem (K-A)

Writing two-variable inequalities word problem (K-A)

Absolute value graphs review (K-A)

Graphing absolute value functions (K-A)

Scaling & reflecting absolute value functions: equation (K-A)

Scaling & reflecting absolute value functions: graph (K-A)

Shifting absolute value graphs (K-A)

Introduction to piecewise functions (K-A)

Worked example: domain & range of piecewise linear functions (K-A)

Worked example: domain & range of step function (K-A)

Worked example: evaluating piecewise functions (K-A)

Worked example: graphing piecewise functions (K-A)

Evaluating fractional exponents (K-A)

Evaluating fractional exponents: fractional base (K-A)

Evaluating fractional exponents: negative unit-fraction (K-A)

Evaluating mixed radicals and exponents (K-A)

Evaluating quotient of fractional exponents (K-A)

Multiplying & dividing powers (integer exponents) (K-A)

Powers of products & quotients (integer exponents) (K-A)

Simplifying mixed radical and exponential expressions (K-A)