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Solving a word problem using a quadratic equation with irrational roots

Shows how to substitite the given value for the output variable, then rearranges the resulting equation in standard form. Values for a, b, and c are identified and then entered into the quadratic…

From  Tom Grant 34 plays 0  

Solving for a variable in terms of other variables in a linear equation with fractions

This describes the process of solving for a particular variable in terms of other variables in an equation. There is a need to go further to combine like terms before it is complete.

From  Tom Grant 18 plays 0  

Finding a final amount in a word problem on exponential growth or decay

This demonstrates how to write the function that includes the initial amount multiplied by the percent remaining or the initial amount multiplied by one plus the percent increase, with either being…

From  Tom Grant 7 plays 0  

Word problem involving radical equations: Advanced

This shows how to insert the given value into a given radical equation and solve for the other variable inside a square root.

From  Tom Grant 9 plays 0  

Solving a value mixture problem using a system of linear equations

Demonstrates how to read and understand the description so that equation can be made for a 2X2 system, then solve the system using and appropriate method.

From  Tom Grant 16 plays 0  

Variable expressions as inputs of functions: Problem type 1

Shows how to input an expression in place of the orignial variable input, and then simplify.

From  Tom Grant 23 plays 0  

Identifying functions from relations

Discussion of what relations and functions are and then some exapmles of how to indentify if a particular relation is more specifically a function.

From  Tom Grant 23 plays 0  

Solving for a variable in terms of other variables using addition or subtraction with division

Another in a series aobut solvingi equations with multiple variables, this time taking two steps to do it/

From  Tom Grant 19 plays 0  

Solving for a variable in terms of other variables using multiplication or division: Advanced

A second example of how to use multiplication or division to isolate a chosen variable in a formula.

From  Tom Grant 17 plays 0