The point p on the circle x2 + y2 = r2 that is also on the terminal side of an angle θ in standard position is given. find the indicated trigonometric function.

(3, 4) find sin θ.

the answer options are attached, if you could show the work or formula that would be great !

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: