About Graphing Linear Equations:

A linear equation in two variables is of the form: ax + by = c. We previously learned how to find ordered pair solutions. We can plot those ordered pairs on a coordinate plane. We then sketch a line through the points to visually display the solution set. We place arrows at each end of the line to indicate the line continues forever in each direction.


Test Objectives
  • Demonstrate the ability to create a table of ordered pairs
  • Demonstrate the ability to plot ordered pairs on a coordinate plane
  • Demonstrate the ability to graph a linear equation in two variables
Graphing Linear Equations Practice Test:

#1:

Instructions: Graph each.

a) x - 2y = -4


#2:

Instructions: Graph each.

a) x - y = -1


#3:

Instructions: Graph each.

a) y = -6


#4:

Instructions: Graph each.

a) 4x - 3y = -24


#5:

Instructions: Graph each.

a) x = -2


Written Solutions:

#1:

Solutions:

a) x - 2y = -4

plotting ordered pairs

#2:

Solutions:

a) x - y = -1

graphing a linear equation in two variables

#3:

Solutions:

a) y = -6

graphing a linear equation in two variables

#4:

Solutions:

a) 4x - 3y = -24

graphing a linear equation in two variables

#5:

Solutions:

a) x = -2

graphing a linear equation in two variables