Before you graph points anywhere on the coordinate plane, you need the basics solid: read a number line, and plot a point by going across (x) first, then up (y) in the first quadrant. Warm those up and graphing clicks.
Answer these 3, then press Show my path. No grade — this just points you to the right level.
1. On a number line, what whole number sits exactly between 2 and 4?
2. To plot a point, which do you do first?
3. A point is 3 right and 2 up from (0,0). What are its coordinates?
A coordinate point is written (x, y). The x tells you how far to move across (right). The y tells you how far to move up. Always do x first, then y.
Your quick check picks one for you, but you can switch any time:
Level 0 Let's read the number line one step at a time.
A. On a number line, what number is 3 steps right of 0?
Start at 0 and count 1, 2, 3.
B. To plot (5, 0), how far do you move across (x)?
The first number is x = 5, so move 5 right.
C. To plot (5, 0), how far do you move up (y)?
The second number is y = 0, so you don't move up at all.
Level 1 Read and plot first-quadrant points.
A. A point is 2 right and 4 up from (0,0). What are its coordinates?
Across (x) first = 2, then up (y) = 4 → (2, 4).
B. In the point (6, 3), what is the y-coordinate (how far up)?
y is the second number: 3.
Level 2 Stretch your reading of points.
A. Which point is farther to the right?
Farther right = bigger x. 7 > 3, so (7, 1).
B. A point is at (4, 4). If you keep y the same but move 2 more right, what is the new x?
4 + 2 = 6.
1. A point is 5 right and 2 up from the origin. What are its coordinates?
x first (5 across), then y (2 up) → (5, 2).
2. In the point (8, 3), what is the x-coordinate?
x is the first number: 8.
You've practiced exactly what Lesson 9-1 uses. Time to dive in.
Start Lesson 9-1 →