Put your grapher in polar mode and degree mode. Set the window so the range for is from
Chapter 13, Problem 4(choose chapter or problem)
Put your grapher in polar mode and degree mode. Set the window so the range for is from 0 to 360 and the -step is 5. Use a range for x of at least [10, 10] and a range for y of at least [7, 7]. Enter the polar equation r = 2 + 8 cos in the y= menu and plot the graph. Press zoom square to make the scales equal on the two axes. What do you notice about the graph?
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