Key Question
How is a table of values used to graph a linear equation?
Key Vocabulary
Linear equation -- an equation that makes a straight line when it is graphed
Standard form of a line -- Ax + By = C, where A and B do not equal zero
Expression -- a mathematical phrase that combines numbers and/or variables using mathematical operations, does not have an equals sign
Standard form of a line -- Ax + By = C, where A and B do not equal zero
Expression -- a mathematical phrase that combines numbers and/or variables using mathematical operations, does not have an equals sign
Using A Table
![Picture](/uploads/1/4/9/1/14919384/296408022.gif)
Example: Graph the linear equation y = 2x + 1
STEPS:
-Step 1: Make A Table like shown to left
-1st Column is X
-2nd Column is the expression
-3rd Column is Y
-4th Column is the ordered pair
-Step 2: Plug in x values into expression to get y value
-Step 3: Write as an ordered pair
-Step 4: Plot the points on the coordinate grid and connect using a ruler
-Step 5: Label the line using the original equation