Step (a) (9, -9) We are given the Cartesian coordinates (9, -9) and must convert this point to polar coordinates. Recall that to find polar coordinates (r, 8), we use the following equations. tan(8) We can use these equations to find the following values for (x, )) = (9, -9). 12 = x2 + 12 + 92 tan(0) = -9 Submit Skip (you cannot come back)