Determine whether each relationship is a function. state the domain and range of each relation.

The answer is:

The relation is a function

Domain: {-2,0,1}

Range:  {1,3}

It's a function since each input (domain) has only one value at the output (range). A function exists when there is exactly one single value for each input, if there is more than one output for each input, the relation is not a function.

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step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

answer is 67%

step-by-step explanation: