ACT Preparation / Unit 19 ACT 1817 short lesson, about 20 seconds
Units and Scale
Captions available
The idea
Every axis and column has units and a scale. Check whether the scale starts at zero, what each gridline is worth, and whether two figures use different units.
In practice
One invented graph gives mass in grams and another in kilograms, so 500 on the first equals 0.5 on the second.
Where people slip
A scale starting at 90 makes small differences look large.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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