System of Equation Graphing and Substitution

The solution (x, y) to a system of equations is the point where they...? 

• Run off the graph

• Don't touch

• Intersect

• Exist

Solve this system of equations by graphing.

y = 4x - 2

y = -x + 3

• (-2,-1)

• (-1,-2)

• (1,2)

• (2,1)

The first step in solving using the substitution method is __________.

• get x by itself

• get y by itself

• get either variable by itself

• add the equations together

Which variable should you isolate first in the system?

• The x in the first equation

• The y in the first equation

• The y in the second equation

• The x in the second equation

Some of the values for two linear equations are shown in the tables below.

• ( -2, 4 )

• ( -2, -4 )

• ( -6, 10 )

• (10, 2 )

The two tables represent the values that correspond to a system of linear equations. What s the solution to this system of linear equations?

• (0, 2)

• (-2, 6)

• (-1, -5)

• (1, 0)

-4x+y=3
x+y=-2
find the solution 

• (3,7)

• (0,0)

• (-1,-1)

• (2,5)

Each table represents (x,y) coordinates from two different equations of lines. The two lines are part of a system of equations. What is the solution of the system of equations?

• (5, 11)

• (2, 5)

• (-1, 1)

• (11, 5)

Each table represents (x,y) coordinates from two different equations of lines. The two lines are part of a system of equations. What is the solution of the system of equations?

• (5, 11)

• (2, 5)

• (-1, 1)

• (11, 5)

What is the correct first step in solving this system by substitution?

• -7(2y+11) - 2y = -13

• -7x -2(2y +11) = -13

• 2y+11-2y = -13