Systems of Two Linear Equations by Substitution

What is the solution to the system?

• (0, 3)

• (1, -1)

• (-3, 1)

• (1, 3)

The equations of two lines are:
 2x-y=4 and y=-2x+8.
What is the value of x in the solution for this system?

• x=8

• x=3

• x=11

• x=5

What is the solution to this system?
x - y = 6
y = 2x - 5

• (1,3)

• (-1,3)

• (-1,-7)

• (1,-7)

This system has _____ solutions

• No

• 1

• 2

• Infinitely many

What is the solution to this system? Solve by substitution.
y= 4x + 3
2x - 3y = 21

• (3,-9)

• (-3,-9)

• (-3,9)

• (0,1)

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

solve by substitution: y=3x+14
y=-4x

• y=3

• y=1

• y= - 2

• y=4

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines

• The same line 

• Intersecting lines

• A triangle

How many solutions will this system have?

• No Solution

• Infinitely Many Solutions

• No Clue

• One solution

Select an equation that would have

infinite solutions

when graphed along with this line

• y = 2/3x+1

• y=3x-2

• 2= -3x +1

• y= -2/3x +1