Recognizing Patterns on a Coordinate Plane

This lesson teaches students how to recognize patterns by graphing ordered pairs on a coordinate plane. It begins with a review of graphing techniques and then presents a problem involving movie ticket prices. Students learn to calculate the cost of tickets and graph these costs as ordered pairs. The lesson concludes by identifying patterns in the graph and addressing common misunderstandings about the x and y axes.

What is the first step in plotting an ordered pair on a coordinate plane?

• Move down on the y-axis

• Move right on the x-axis

• Move left on the x-axis

• Move up on the y-axis

If Reggie bought two movie tickets for $14, what is the cost of one ticket?

• $5

• $6

• $7

• $8

How much would three movie tickets cost if one ticket is $7?

• $21

• $35

• $14

• $28

What pattern is observed when graphing the cost of movie tickets on a coordinate plane?

• The line moves downward

• The line moves upward

• The line is vertical

• The line is horizontal

What is a common mistake students make when identifying the x-axis and y-axis?

• Thinking the y-axis is vertical

• Thinking the x-axis is vertical

• Thinking the y-axis is diagonal

• Thinking the x-axis is diagonal

How do you remember which axis is the x-axis?

• It is the vertical line

• It is labeled with numbers

• It is sometimes called a cross

• It is the longest line

What does the upward direction of the line on the graph indicate?

• A constant cost

• A decrease in cost

• An increase in cost

• No change in cost