Search for tag: "fifths"

Rational exponents: Product rule

A simple demonstration of how the product rule forexponents still applies when the exponents are fractions

From  Tom Grant 12 plays 0  

Identifying parallel and perpendicular lines from equations

This shows how to transform all given equation that are not in slope-intercept form and then pick out the slopes of all three given lines and compare them to see if they are parallel, perpendicular…

From  Tom Grant 13 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  

Rational exponents: Powers of powers with negative exponents

An example of distributing an exponent outside the parentheses to each factor iinside and then using the negaitve exponent definition to eliminate the negative.

From  Tom Grant 10 plays 0  

Solving a rational equation that simplifies to linear: Denominator x + a

Shows cross multipication of two single fractions set equat to each other to create a new equation that has no fractions and is then solvable by the typical methods.

From  Tom Grant 17 plays 0  

Complex fraction without variables: Problem type 2

Shows how to simplify a large fractions with fractioins embedded in it. The simplest way involves multiplying all small fractions by their least common denominator so the individual denominators…

From  Tom Grant 9 plays 0  

Evaluating a rational function: Problem type 1

For an equation with f(x) equal to a rational expression, this shows how to write the substitution and simplification when putting in a particular value for x.

From  Tom Grant 7 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  

Solving a two-step equation with signed fractions

Shows how to get rid of fractions early by multiplying through an equation by the LCD of all of the fractions.

From  Tom Grant 17 plays 0  

Multiplicative property of equality with signed fractions

Multiplying both sides by the reciprocal of the variable's coefficient in order to get the variable alone and keep the equation balanced.

From  Tom Grant 56 plays 0  

Additive property of equality with signed fractions

Adding the same fraction to both sides so the variable is left by itself

From  Tom Grant 54 plays 0  

Evaluating a linear expression: Signed fraction multiplication with addition or subtraction

Evaluating a variable expression when you know specific number values for each varible.

From  Tom Grant 26 plays 0  

Fractional position on a number line

The procedure for analyzing a number line graph so we know what fractions are being represented and then count the spaces to the designated point

From  Tom Grant 12 plays 0  

Converting a fraction to a percentage: Denominator of 20, 25, or 50

Fraction conversions that are simpler than they look.

From  Tom Grant 9 plays 0  

Converting a fraction to a percentage: Denominator of 4, 5, or 10

Conversions using money as a way to think them through.

From  Tom Grant 12 plays 0  

Fraction division

Just a short application of the "keep, change, flip" technique.

From  Tom Grant 25 plays 0