This video demonstrates how to solve a linear function with rational coefficients by multiplying by the reciprocal of the coefficient. The reciprocal is just a fancy way of saying the numerator and denominator are swapped. Two sample problems are solved using this method. Multiplying each side of the equation by the reciprocal of the rational coefficient of the variable 'x' is an allowed operation, but only because both sides are multiplies by the the same amount. The teacher then demonstrates how you can perform cancellation of the numerator and denominator terms with a common divisor to make the process of arriving at an answer much simpler. When doing problems like this, make sure to keep track of negative signs as you multiply both sides by the reciprocal.
 Hot
 Latest

How To: Find the Percent Given Two Numbers

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find a number given Its percent

How To: Calculate Faster Than a Calculator

How To: Do long division without a calculator

How To: Figure out the domain & range of a piecewise function

How To: Find the area of a parallelogram using geometry

How To: Calculate percent composition for chemistry

How To: Simplify surds (improper square roots)

How To: Find the equation of a circle given: center & tangent

How To: Write a logarithm as a sum or difference of logarithms

How To: Identify characteristics of a sample during a survey

How To: Find the area of a circle when you know the diameter

How To: Translate a shape

How To: Find the slope of a line given 2 points with fractions

How To: Find the formula of a piecewise function given a graph

How To: Find a missing coordinate given: coordinate & equation

How To: Solve percentages without a calculator

How To: Find a slope of a straight line with: Ax + By + C = 0

How To: Find the Percent Given Two Numbers

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find a number given Its percent

How To: Calculate Faster Than a Calculator

How To: Do long division without a calculator

How To: Figure out the domain & range of a piecewise function

How To: Find the area of a parallelogram using geometry

How To: Calculate percent composition for chemistry

How To: Simplify surds (improper square roots)

How To: Find the equation of a circle given: center & tangent

How To: Write a logarithm as a sum or difference of logarithms

How To: Identify characteristics of a sample during a survey

How To: Find the area of a circle when you know the diameter

How To: Translate a shape

How To: Find the slope of a line given 2 points with fractions

How To: Find the formula of a piecewise function given a graph

How To: Find a missing coordinate given: coordinate & equation

How To: Solve percentages without a calculator

How To: Find a slope of a straight line with: Ax + By + C = 0
Be the First to Comment
Share Your Thoughts