Search for tag: "formula"

Word problem involving radical equations: Advanced

Demonstrates how to solve for a variable under the radical that needs to isolated first after entering the given value for the other variable in a formula.

From  Tom Grant 6 plays 0  

Introduction to compound interest

A short discussion of how compunde interest works and why the amount in a compound interest account grows more and more quickly.

From  Tom Grant 6 plays 0  

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 30 plays 0  

Word problem involving the maximum or minimum of a quadratic function

This video explains the situation we are trying to minimize or maximize and the role of the input and output variables. Then the process of finding the location and value of the requested amount is…

From  Tom Grant 11 plays 0  

Solving for a variable inside parentheses in terms of other variables

This demonstrates two ways of dealing with a literal equation that has parentheses which adds an extra step in the process in the first method, bu t not the second.

From  Tom Grant 6 plays 0  

Finding the maximum or minimum of a quadratic function

This shows how to decide whether you are seeking a maximum or minimum value for a quadratic function and then how to find the vertex of i ts parabola to deternine the x-value that locates the min…

From  Tom Grant 11 plays 0  

Finding the x-intercepts, the y-intercept, and the vertex of a parabola

This demonstrates how to find these values for a quadratic equation of the form y = ax^2 + bx + c.

From  Tom Grant 20 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  

Pythagorean Theorem

A quick run through the use of a^2 + b^2 = c^2 to find an unknown side of a right tirangle if we know the other two sides.

From  Tom Grant 14 plays 0  

Application problem with a linear function: Finding a coordinate given two points

We use the slope formula to find the slope from the given points, then we use it again, inserting the discovered slope and solving for the desired missing coordintate of a third point.

From  Tom Grant 47 plays 0  

Writing equations of lines parallel and perpendicular to a given line through a point

Need the videos for finding tej slopes of parallel and perpendicular lines before viewing this one. This shows how to get the infromation needed for fulling in the point-slope form. You can leave…

From  Tom Grant 38 plays 0  

Writing an equation in point-slope form given the slope and a point

Shows how you can create the point-slope form, then shows the entry of the given information.

From  Tom Grant 10 plays 0  

Finding the slopes of horizontal and vertical lines

Presents the use of the slope formulat we use to calculate the slopes of these special lines.

From  Tom Grant 24 plays 0  

Finding the slope given the graph of a line on a grid

From  Tom Grant 28 plays 0  

Solving a distance, rate, time problem using a linear equation

An introduction to distance, rate, and time problems where a chart is helpful to organize the information.

From  Tom Grant 22 plays 0  

Solving for a variable in terms of other variables using addition or subtraction: Advanced

Demonstrating how to rearrange a formula so you don't have to this algebra every time you use it to get a specific value.

From  Tom Grant 72 plays 0