This video shows the method to solve a pair of linear equations by plotting their graph. Look for points of intersection of the two graphs which is the solution. Let us solve 5xy=6 and 2x+y=8. Writing the equations of lines in slope intercept form, we get y=5x6 and y=2x+8. Now we plot the two lines. For the slope 5 or 5/1, we go up 5 units and left 1 units from the point of intersection on the y axis. For 2 or 2/1, we go down 2 units and left 1 units from the point of intersection on the y axis. Plotting the graphs, we look at their point of intersection which in this case is (2,4). This finishes our task.
 Hot
 Latest

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

How To: Find a number given Its percent

How To: Find the area of a parallelogram using geometry

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the area of a rectangle

How To: Do long division without a calculator

How To: Calculate the area of a parallelogram

How To: Calculate Faster Than a Calculator

How To: Calculate percent composition for chemistry

How To: Divide small numbers by big numbers

How To: Find the Percent Given Two Numbers

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

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

How To: Find a missing side of a triangle, similar to another

How To: Write a slopeintercept equation given an XY table

How To: Find the Slope Given 2 Ordered Pairs

How To: Find and sketch the domain of a multivariable function

How To: Do long division with decimals

How To: Multiply proper & improper fractions

How To: Calculate standard deviation

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

How To: Find a number given Its percent

How To: Find the area of a parallelogram using geometry

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the area of a rectangle

How To: Do long division without a calculator

How To: Calculate the area of a parallelogram

How To: Calculate Faster Than a Calculator

How To: Calculate percent composition for chemistry

How To: Divide small numbers by big numbers

How To: Find the Percent Given Two Numbers

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

How To: Spend Money on a Graphing Calculator? Nah—Just Use This WebBased TI Emulator

How To: Find a missing side of a triangle, similar to another

How To: Write a slopeintercept equation given an XY table

How To: Find the Slope Given 2 Ordered Pairs

How To: Find and sketch the domain of a multivariable function

How To: Do long division with decimals

How To: Multiply proper & improper fractions

How To: Calculate standard deviation
Be the First to Comment
Share Your Thoughts