Answer:

Step-by-step explanation:
Cosecant function is undefined when angle is 0 radians and equal to 1 when angle is 0.5π. The graphic shows a translation of 2 units in the +y direction. Then, the function is:

Answer:
The answer to this is x = - y / 2
Step-by-step explanation:
Answer:
The third choice
Step-by-step explanation:
a relation is a function if an input has at most one output for a given input
Choices 1, 2 and 4 are not functions as they have two different outputs for the same input. (See the red ovals)