Equations of Lines

What is the solution?

• (6, 3)

• (3, 6)

• (-6, 3)

• No solution

The solution to this system is:

• No solution

• (0, 1)

• (0, -2)

• (4, 3)

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

• Parallel lines

• Identical lines 

• Intersecting lines

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

• Intersecting lines

• Identical lines

• Parallel lines

What is the slope of the line 3x-9y=12?

• 3

• 9

• 1/3

• -3

The graph represents the height of a burning candle.  What is the meaning of the y-intercept?

• the time it takes to burn the entire candle

• the rate at which the candle is losing height

• the change in the height of the candle each hour

• the original height of the candle

• (2, -2)
• (2, 2)
• (-2, 2)
• (-2, -2)

• (2, -1)
• (-1, 2)
• (-2, 1)
• (1, -2)

• (2, 0)
• (-2, 0)
• (0, 2)
• (0, -2)

• (-3, 0)
• (0, 3)
• (3, 0)
• (0, -3)