Question 1
What are the coordinates of the origin on a number plane?No clue? Show me the answer
Correct answer
Correct!
IncorrectStep-by-step walkthrough
Choose a solution method
Method #1Direct ApproachStep 1: Identify what the origin is
The origin is the special point where the x-axis and the y-axis cross each other. It is labelled O on the number plane.
Step 2: Apply the definition of coordinates
At the origin, there is no movement along the x-axis and no movement along the y-axis. This means both the x-coordinate and y-coordinate are zero.
Step 3: Write the coordinates
Since and , the coordinates of the origin are written as (0, 0).
Method #2Process of EliminationStep 1: Identify what is being asked
We need to find the coordinates of the origin — the point where both axes meet.
Step 2: Eliminate (1, 1)
The point (1, 1) is 1 unit to the right and 1 unit up from the origin — it is not the origin itself.
Step 3: Eliminate (0, 1) and (1, 0)
The point (0, 1) lies on the y-axis but 1 unit above the origin, and (1, 0) lies on the x-axis but 1 unit to the right. Neither is the crossing point of both axes.
Step 4: Select the correct answer
The origin is where both axes cross, so both coordinates must be zero. The correct answer is (0, 0).
Question 2
A point is plotted by starting at the origin, moving 5 units to the right, and then 3 units downward. What are the coordinates of this point?No clue? Show me the answer
Correct answer
Correct!
IncorrectStep-by-step walkthrough
Choose a solution method
Method #1Direct ApproachStep 1: Identify the direction rules
Moving right from the origin gives a positive x-coordinate. Moving downward from the x-axis gives a negative y-coordinate.
Step 2: Apply the directions to find each coordinate
Moving 5 units to the right means . Moving 3 units downward means .
Step 3: Write the ordered pair
Coordinates are always written as , so the point is (5, −3). Remember: x-coordinate first, then y-coordinate.
Method #2Process of EliminationStep 1: Identify what each movement means
We need a point that is 5 to the right (positive x) and 3 downward (negative y). The correct form is .
Step 2: Eliminate (−5, 3)
The point (−5, 3) is 5 units to the left and 3 units up — the opposite of what was described.
Step 3: Eliminate (3, −5)
The point (3, −5) has the numbers swapped — it moves 3 right and 5 down, not 5 right and 3 down.
Step 4: Eliminate (5, 3)
The point (5, 3) is 5 right and 3 up, but the description says downward, so the y-coordinate must be negative.
Step 5: Select the correct answer
The only option matching 5 right and 3 down is (5, −3).
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