SOLUTION: I'm trying to sketch a graph of a semicircle and determine its center points and radius. The equation is y=square root of (-12x-x^2). My book doesn't explain semicircles. Please he
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Question 943060: I'm trying to sketch a graph of a semicircle and determine its center points and radius. The equation is y=square root of (-12x-x^2). My book doesn't explain semicircles. Please help! Thanks!
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
first, write it in the form then (,) is the center and is the radius
..... square both sides
complete square
center (,) and radius of
To sketch, plot the center. The radius is so go out units in each direction until you have enough points to draw in the graph, or use a compass.
few more points
(,)
(,)
(,)
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