# Search for tag: "calculator"

#### Power rules with positive exponents: Multivariate quotients

A quick example of distributing an external exponents to all factors in a rational expression

From  Tom Grant 2 plays 0

#### Evaluating an algebraic expression: Whole numbers with two operations

A quick demo about plugging in given values for variables and calculating a number result.

From  Tom Grant 6 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

#### Evaluating an exponential function that models a real-world situation

This shows how to enter a value into a function to get a result for something like depreciation of value over time for a purchased item.

From  Tom Grant 7 plays 0

#### Introduction to solving a radical equation

A qucik demo to get you started on solving radical equations

From  Tom Grant 17 plays 0

#### Simplifying a quotient involving a sum or difference with a square root

Demonstrations that emphasize the fact that a fraction bar acts like parentheses in that the each part of the fraction must be factored so that there is a product of factors on both top and bottomof…

From  Tom Grant 9 plays 0

#### Introduction to simplifying a product involving square roots using the distributive property

A quick look at distributin a radical across a sum of a whole number and a different radical

From  Tom Grant 16 plays 0

#### Rational exponents: Negative exponents and fractional bases

Two examples of how to deal with negative fractional exponents

From  Tom Grant 12 plays 0

#### Rational exponents: Unit fraction exponents and bases involving signs

Two examples of how to deal with fractional exponents on negative numbers.

From  Tom Grant 7 plays 0

#### Converting between radical form and exponent form

Shows how these forms are interrelated

From  Tom Grant 6 plays 0

#### Solving a rational equation that simplifies to quadratic: Binomial denominators, constant numerators

Here we solve a rational equation by multiplying each of the terms in the equation by the LCD of all of the fractions. This allows us to divide to one all of the factors in the denominators and the…

From  Tom Grant 8 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 9 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 12 plays 0

#### Factoring a linear binomial

Shows how to factor the greatest common factor from a simple linear binomial

From  Tom Grant 20 plays 0

#### Solving a word problem using a system of linear equations of the form Ax + By = C

Talks about how to interpret the words to create two equations, then solves them together using the elimination method, making opposites of one variable's terms sot that the equations can be…

From  Tom Grant 13 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 14 plays 0