Lesson 5: Ordered Pairs in All Four Quadrants6.NOS.7

I can…

I can plot ordered pairs in all four quadrants of the coordinate plane.

Key words

• Quadrant — One of the four parts of a coordinate grid, numbered I to IV.
• Negative coordinate — A coordinate less than zero. It means left or below the center point.
• Reflection — A flipped, mirror image across a line.
• Axis — A line on the grid. The x-axis goes across; the y-axis goes up.
• Integer — Whole numbers and their opposites, like -2, -1, 0, 1, 2.

Steps

1. I will plot (-3, -4). I start at the origin (0, 0).
2. The x is -3, which is negative, so I move 3 units to the LEFT.
3. The y is -4, which is negative, so I move 4 units DOWN. I place my dot.
4. Both coordinates are negative, so the point is in Quadrant III.

Try it

A point has a negative x-coordinate and a negative y-coordinate. Which quadrant is it in?

Check your answer

Quadrant III

Quadrant III is where both x and y are negative. This means the point is left of the origin and below the origin.

Sentence starter

I know ___ because ___.

Goal: I can explain my work using the words quadrant, negative coordinate, reflection, and axis.