Suppose that the functions q and / are defined as follows. 9 (x) =x+6 r(x) =Vx+9 Find the following. (r . q) (7) = 0 (q or) (7) = 0 X 54 The volume 1700 (in cubic meters) of a spherical balloon with radius r meters is given by V(r) = Em}. The radius WU) (in meters) after 2' seconds is given by W (I) = 5r+3. Write a formula for the volume 111(1) (in cubic meters) of the balloon after 3' seconds. It is not necessary to simplify. M(:) = [1] an a E For each equation, determine whether its graph is symmetric with respect to the x-axis, the y-axis, and the origin. Check all symmetries that apply. X 5 (a) y = 4x (b) 33x- + 15y- = 61 Symmetry: Symmetry: O x-axis O x-axis O y-axis O y-axis O origin O origin O none of the above O none of the above