The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the graph.[-5, 5] by [-5, 5] (1 point)
The general form for this curve is: [tex]r = Acos \theta + B[/tex] Now find A,B given 2 points: [tex]r(0) = 5, r(\pi) = 1[/tex] [tex]A +B = 5 \\ \\ -A+B = 1[/tex] Solving this system yields: [tex]A = 2, B = 3 \\ \\ r = 2cos \theta + 3[/tex]
