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Home > APCALC > Chapter 9 > Lesson 9.4.3 > Problem 9-137

9-137.

The graph below is called a limaçon. Use your conclusions from problem 9-128 to write its equation.

Enclosed Continuous curve starting at the origin, going left & down, turning left & up @ (negative 1, comma negative 0.25), turning up & right @ (negative 3.5, comma 2.5), turning down & right @ (0, comma 6), turning down & left @ (3.5, comma 2.5), turning up & left @ (1, comma negative 0.25), passing through the origin, turning right & up @ (negative 1, comma 1), turning right & down @ (0, comma 2), turning right & down at (1, comma 1), returning to the origin.

Notice that the points and are on the graph.
Use these points and substitution to solve for the values of and .

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