AMC / AIME · Coordinate Geometry · Easy

Coordinate Geometry: What is the slope of a line perpendicular to math?

Place figures on axes.

Try the problem

What is the slope of a line perpendicular to y=13x+2y=\frac13x+2?

Hint and answer

Concept to use

Distance/slope.

Hint

Use slope, midpoint, or distance formulas directly.

Answer

-3

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