Search for tag: "amount"

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  

Finding the final amount in a word problem on compound interest

This video gives the formula for calculating compound interest and then demonstrates how to calculate the future amount after a given number of years.

From  Tom Grant 11 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  

Simplifying a radical expression with an odd exponent

Shows how to separate out the persct square so they can become whole numbers or expression leaving the remaining factors under the square root.

From  Tom Grant 18 plays 0  

Finding the LCD of rational expressions with linear denominators: Common factors.

A demonstration of how factoring is used to discover the minumum number of factors that need to be combined to find the smallest denominator that can be used as the LCD of the two given fractions.

From  Tom Grant 8 plays 0  

Greatest common factor of two multivariate monomials

Expands each monomial as a list of all of its prime factors, then showing those that both lists have in common to develope the GCF.

From  Tom Grant 23 plays 0  

Writing a multi-step expression for a real-world situation

This demo takes some thought so you may want to watch it a few times to fully understand. Writing the expression and then we simplify it so that it is more usable in future.

From  Tom Grant 17 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  

Factoring a polynomial involving s GCF and a difference of squares: Univariate

A two-step process involving first removing the greatest common factor from both terms, then factoring the resulting difference of squares.

From  Tom Grant 16 plays 0  

Evaluating an expression with a negative exponent: Negative integer base

Reminder of the negative exponent rule, then transforming a couple of numerical expressions with negative numbers as bases as well as exponents.

From  Tom Grant 22 plays 0  

Interpreting the graphs of two functions

Demonstates how to interpret a graph of a system of functions so that common questions that someone might have can be answered.

From  Tom Grant 72 plays 0  

Finding inputs and outputs of a two-step function that models a real-world situation: Function notation

Describes a situation that can be written as a function of the number of weeks a certain amount it saved and the resulting functional value is the amount still needed to be saved to buy something. …

From  Tom Grant 27 plays 0  

Application problem with a linear function: Finding a coordinate given slope and a point

Using the slope formula, we enter the given information and then solve for the unknown coordinate.

From  Tom Grant 24 plays 0  

Finding the percentage increase or decrease: Advanced

This video shows how to compute the percentage of a price increase. A price decrease is worked the same way and the percentage is taken of the first and higher price.

From  Tom Grant 11 plays 0  

Finding the total cost including tax or markup

Uses the technique of adding the percentages fiirst before multiplying so that the answer is immediate.

From  Tom Grant 10 plays 0  

Finding a percentage of a total amount without a calculator: Sales tax, commission, discount

Just finding the amount of increase or decrease in these types of percent problems.

From  Tom Grant 8 plays 0