Factoring with negative numbers. Using negative one to change the signs of each term in an expression.
Practice solving an equation using the quadratic formula: 9x2 - 24x = -16.
The Pythagorean Theorem can also be used to determine the length of the hypotenuse given the length of the legs, or the length of a leg given the length of the hypotenuse and the other leg. The formula is demonstrated for both purposes.
Factoring a quadratic trinomial with a leading coefficient greater than one.
Constructing an equation with two variables and using a table to help solve it.
The procedure for developing an equation to solve a practical work problem involving machines working at different speeds is detailed. The unknown is identified and an equation is written, solved, and checked.
The rate, time, and distance formula is used to solve a practical problem involving runners' rate of speed.
Using a quadratic equation with two variables to solve a practical problem involving product pricing.
Using the slope formula to plot a graph.
How to solve more complex inequality problems.