Exploring Tracy's Grid World

What is the starting point of Tracy in her grid world?

• (100, 100)

• (0, 0)

• (-200, -200)

• (200, 200)

How wide is Tracy's grid world in pixels?

• 800 pixels

• 600 pixels

• 400 pixels

• 200 pixels

What happens when Tracy receives the 'backward' command?

• Stops moving

• Moves forward

• Turns around

• Moves backward

What command prevents Tracy from leaving a trail?

• pen down

• go to

• set position

• pen up

If Tracy's default is to draw a line, which command is unnecessary at the start?

• backward

• forward

• pen down

• pen up

What does the 'set position' command do?

• Changes Tracy's direction

• Moves Tracy to a specific coordinate

• Moves Tracy diagonally

• Rotates Tracy 90 degrees

If Tracy starts at (0, 0) and the 'set X' command is used with 100, where does she move?

• (0, 100)

• (0, 0)

• (100, 100)

• (100, 0)

What is the effect of the 'set Y' command if used with 100 when Tracy is at (0, 0)?

• Moves to (100, 0)

• Stays at (0, 0)

• Moves to (0, 100)

• Moves to (100, 100)

Which command directly moves Tracy to a new position without changing her facing direction?

• set X

• go to

• pen up

• set Y

What happens if the 'pen up' command is not used before 'set position'?

• Tracy leaves a trail

• Tracy will not move

• Tracy changes direction

• Tracy moves backward