A scatterplot pairs two values in each dot. If the question asks about one Saturday, find its number on the horizontal axis, follow it up to the dot, and read the dot's height on the vertical axis. Don't use a neighboring dot or estimate from the overall pattern when the plot shows the count directly.
Hints
- Hint 1
Each dot pairs a Saturday number with the seedling count for that same Saturday. The horizontal axis identifies the Saturday. Where is the dot directly above ?
- Hint 2
A dot's height is its vertical coordinate, or seedling count. Read across from the dot above to the vertical scale, rather than using the dot beside it.
Step-by-step
Read the dot for Saturday 7
Step 1Find the requested Saturday's dot
No Desmos needed. Read the answer off the scatterplot. Each dot pairs one Saturday number with that Saturday's seedling count. The horizontal axis gives the Saturday number, so start at and go straight up to its dot.
- Step 2
Read the dot's height
From that dot, read across to the vertical axis, which gives seedlings planted. Its height is , so the volunteers planted seedlings on the seventh Saturday. Choice C.