In quadrilaterals inscribed in circles, the sum of opposite angles=180 degrees. so, x+134=180
You put the answer as 2 already
The initial value is 3 (when x=0), and the multiplier is 2, when x=2. The equation can be written as
.. y = 3*(2^(x/2))
The point (a,b) would be in quadrant 2 (the one on the top left)