Search for tag: "solution"

Solving an equation written in factored form

Starts with cautiioning against multiplying the factors back together and describes the zero product property to justify this warning. Then shows how to continue from the factored form to separate…

From  Tom Grant 15 plays 0  

Identifying solutions to a linear equation in two variables

A demo that shows how to substitute possible x-y ordered pairs into an equation to find out whether they create a true statement, determining which are solutions and which are not.

From  Tom Grant 22 plays 0  

Solving a compound linear inequality: Interval notation

This describes how to solve each side of a compound inequality, then using the graphs of each part determine the interval notation for the entire compound statement.

From  Tom Grant 19 plays 0  

Solving a compound linear inequality: Graph solution, basic

Presents a compound inequality where both sides have to be solved for the variable first, and then shows how to graph the simplified results

From  Tom Grant 16 plays 0  

Discriminant of a quadratic equation

Gives the three possible answers that result from calculating a discriminant, then demonstratew with two different quadratic equations.

From  Tom Grant 12 plays 0  

Solving a radical equation that simplifies to a linear equation: One radical, advanced

Two examples here of solving radical equations. Both have one radical that each need isotation before squaring both sides.. Emphasis is p laced on checking your answer because the one arrived at…

From  Tom Grant 8 plays 0  

Solving a radical equation that simplifies to a linear equation:One radical, basic

Two examples that show different possible results from solving a radical equation. You must always check the answer to these.

From  Tom Grant 15 plays 0  

Solving a rational equation that simplifies to linear: Unlike binomial denominators

Shows how to find a common denominator to use as a multiplier for each term in a rational equation (an equation with fractions) to then eliminate the denotminators and the result will be a more…

From  Tom Grant 23 plays 0  

Solving a rational equation that simplifies to linear: Like binomial denominators

This has two examples so that you can learn to watch out for what looks like a solution but is not because it creates division by zero if you check the answer in the original equation. The other…

From  Tom Grant 38 plays 0  

Classifying systems of linear equations from graphs

Looks at the three types of graphs that can occur with a system of two linear equaltions in two variables.

From  Tom Grant 17 plays 0  

Identifying solutions to a system of linear equations

This demonstrates testing possible answers to a system of two equations to see whether they are truly answers or not. Note that each answer has to work for both equations, but if it doesn't…

From  Tom Grant 14 plays 0  

Identifying solutions to a two-step linear inequality in one variable

Demonstrating how to substitute several values for the variable in an inequality to see if they are valid solutions.

From  Tom Grant 21 plays 0  

Solving a linear equation with several occurrences of the variable: Variables on the same side

One type of equation you will have to know how to solve

From  Tom Grant 18 plays 0  

Identifying solutions to a linear equation in one variable: Two-step equations

Shows how to substitute values for the variable in a simple equation and determine what values, if any, make it equal.

From  Tom Grant 26 plays 0