HW Week of June 1st

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

Which variable will be eliminated?

• x

• y

Given the equation
4x + 2y = 10  
What is the slope-intercept form of this equation? 

• y = 2x + 5
• y = -2x + 5
• y = 4x + 10
• y = -2x - 10

What would be the first step in finding the solution using elimination?

2x + 2y = -2

3x - 2y = 12

• you cannot solve this using elimination

• cross out the 2x and 3x

• Add the like terms. The y terms will cancel out.

• change to slope intercept form and graph

When does a system of equations have no solutions?

• When the lines cross
• When slopes of the lines are different
• When the slopes are the same
• There is ALWAYS a solution sir!

If a system of linear equations has infinitely many solutions, what does this mean about the two lines? 

• Intersecting lines
• Same line
• Parallel lines

What would be the first step in finding the solution using elimination?

2x + 2y = -2

3x - 2y = 12

• you cannot solve this using eliminiation

• cross out the 2x and 3x

• cross out the 2y and -2y

• change to slope intercept form and graph

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