4.2 XY Coordinate

What is the center point in Scratch’s coordinate system?

• (0, 0)

• (10, 10)

• (240, 180)

• (1, 1)

What happens when you use change x by 10?

• The sprite moves up

• The sprite moves right

• The sprite moves left

• The sprite moves down

What happens when you use change y by -15?

• The sprite moves up

• The sprite moves to center

• The sprite moves right

• The sprite moves down

If the sprite is at X = 5 and you use change x by -3, what is the new X position?

• 2

• -3

• 5

• 8

The sprite is at Y = -2. You use change y by 7. What is the new Y position?

• 5

• -9

• -5

• 7

What does the block set x to 100 do?

• Moves sprite up

• Moves sprite to x = 100

• Moves sprite to y = 100

• Teleports sprite to (0, 100)

If you want the sprite to appear higher on the screen, which block do you use?

• set x to 0

• change y by -10

• set y to 120

• set y to -120

What does the block go to x: 0 y: 0 do?

• Hides the sprite

• Makes sprite spin

• Sends sprite to the center of the stage

• Resets all variables

The block change x by -10 makes the sprite move to the left.

• True

• False

You want to move a sprite to the top-right corner of the stage. Which code is best?

• go to x: -240 y: -180

• set x to 240, set y to 180

• change x by -10, change y by -10

• go to x: 0 y: 0