mistakes.
How a problem gets marked
The problem stays on the page, and the mark lands on the symbol.
Step 1 v = v₀ + at
Step 2 v = 5 − 3(4)
Sign slipped. Acceleration adds to velocity here.
It points at the exact symbol that broke.
50+
Languages
The app follows the language you pick.
Mark
The symbol
It lands on the sign, exponent, or variable that slipped.
Note
One line
Why it slipped, not a paragraph of critique.
After the mark
Correct the line, or ask about the step.
v = 5 − 3(4)
v = 5 + 3(4)
Correct My Work.
The corrected line, drawn in where the sign slipped.
Why is the sign wrong?
Acceleration adds to velocity here.
Ask about that step.
The question stays on the problem you are solving.
Math explained, visually.
Algebra through high-school physics.
Algebra
Geometry
Trigonometry
Calculus
High-school physics
