Skip to content
The Lumenary

Practice · Grades 6–8

The coordinate plane

The coordinate plane

Warm-upHuman

In which quadrant is the point (−3,5)(-3, 5)?

Choose one

The coordinate plane

Warm-upHuman

Reflect the point (4,−7)(4, -7) in the yy-axis. Where does it land?

Choose one

The coordinate plane

Warm-upHuman

What is the distance between (−6,3)(-6, 3) and (5,3)(5, 3)?

The coordinate plane

CoreHuman

A cyclist in a city of square blocks rides from (−2,−3)(-2, -3) to (4,5)(4, 5) along the streets, never doubling back. How many blocks does she ride?

The coordinate plane

CoreHuman

A point PP is reflected in the xx-axis and then the result is reflected in the yy-axis. It ends up at (−2,5)(-2, 5). Where was PP?

Choose one

The coordinate plane

Warm-upHuman

Kofi was asked to plot (3,2)(3, 2). He started at the origin, went up 3 and then right 2. Which point did he actually plot?

Choose one

The coordinate plane

CoreHuman

Which point is exactly halfway between (−3,2)(-3, 2) and (4,2)(4, 2)?

Choose one

The coordinate plane

StretchHuman

Which statements are true for every point (a,b)(a, b)? (Choose all that apply.)

Choose all that apply

The coordinate plane

CoreFormal

In the Lean file, reflectX P is the reflection of the point P in the xx-axis. Which statement says that reflecting twice in the xx-axis brings every point back?

Choose one

The coordinate plane

StretchComputational

Write a function quadrant(x, y) that returns 1, 2, 3 or 4 for a point in quadrant I, II, III or IV, and 0 for a point on an axis. It should work for fractions too.

Runs entirely in your browser, in an isolated worker. Nothing is sent to a server.