We'll save (a) for last
(b) 3 / x = 4x + 4 this will have two real solutions
(c) Multiply both sides by x
3 = 4x^2 + 4x rearrange as
4x^2 + 4x - 3 = 0 factor
(2x - 1) (2x + 3) = 0
Set both factors to 0 and solve for x and we get x = 1/2 or x = -3/2
When x = 1/2 ...... y = 3 / (1/2) = 6
When x = -3/2.......y = 3 / (-3/2) = -2
So..intersection pts are (1/2, 6) and ( -3/2, -2)
Here's the graph : https://www.desmos.com/calculator/omkotiywia