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- Mathematics > General
- Mathematics > Algebra
- Mathematics > Equations
- Mathematics > Geometry
- Mathematics > Graphing

- Grade 6
- Grade 7
- Grade 8
- Grade 9
- Grade 10

Reason abstractly and quantitatively.

Construct viable arguments and critique the reasoning of others.

Use appropriate tools strategically.

Attend to precision.

Look for and make use of structure.

Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.