Search for tag: "change"

Adding rational expressions with linear denominators with common factors: Basic

This shows how to determine a common denominator when the denominators share at least one factor. A numerical version is included for more understanding, and the rational expressions are added and…

From  Tom Grant 22 plays 0  

Dividing rational expressions involving linear expressions

A brief informal reasoning of why any division can be changed to a multiplication by reciprocating the second number or fraction, i. e. the number going into the other number. Then an example of…

From  Tom Grant 6 plays 0  

Dividing rational expressions involving multivariate monomials

A quick justification of dividing fractions by multiplying by the reciprocal of the second fraction in the division followed by an example that involves reducing the common factors in the numerator…

From  Tom Grant 5 plays 0  

Writing an equation and graphing a line given its slope and y-intercept

The informaton given here can be entered directly into the y = mx + b or slope-intercept form. Then the y-intercept is used as a starting point where you apply rise over run to the given slope to…

From  Tom Grant 6 plays 0  

Graph a line given its equation in slope-intercept form: Fractional slope

Another demo on how to use the y-intercept to start a graph of a linear equation and then use the slope to find other points on the graph. It finishes with showing the line representing all of the…

From  Tom Grant 8 plays 0  

Graphing a line given its equation in slope-intercept form: Integer slope

This explains how to use the slope and y-intercept to determine points on the line graph of a linear equation in two variables and then draws the straight line graph.

From  Tom Grant 10 plays 0  

Complex fractions involving multivariate monomials

Simplification of two fractions withing a larger fraction. Both fractions have only multiplied factors in both numerator and denominator.

From  Tom Grant 11 plays 0  

Complex fraction involving univariate monomials

An explanation of two single fractions divided with monomial denominators and how to simplify them

From  Tom Grant 11 plays 0  

Complex fractions without variables: Problem Type 1

Demonstrates simplifying fractionis within fractions.

From  Tom Grant 29 plays 0  

Power and quotient rules with negative exponents: Problem type 2

Another example of simplifying a fraction in parentheses raised to a power

From  Tom Grant 34 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  

Interpreting the parameters of a linear function that models a real-world situation

Describes what the values in a linear relationship mean in a real situation.

From  Tom Grant 7 plays 0  

Writing an equation and drawing its graph to model a real-world situation: Advanced

Shows how to interpret a situatioin and create an equation that creates a mathematical connection between two variables. Then by substituting a couple of input values, we can determine the outputs…

From  Tom Grant 71 plays 0  

Finding slopes of lines parallel and perpendicular to a line given in slope-intercept form

Describes how and why the slopes of parallel and perpendicular lines can be found

From  Tom Grant 9 plays 0  

Classifying slopes given graphs of lines

Shows how to identify the four different categories for slopes of straight line graphs

From  Tom Grant 31 plays 0  

Finding the final amount given the original amount and a percentage increase or decrease.

Finding the amount from taking a percentage off or adding a percentage on, then finding the new amount.

From  Tom Grant 10 plays 0