multiple choice questions in relation and functions trigonometric function

A relation becomes a function only if _______. => for two inputs there is exactly one output or for every input, there are fixed number of outputs or for every input there are two outputs or for every input there is exactly one output..

The circle whose radius is 1 unit whose centre is the origin of a rectangular co-ordinate system is called the unit circle. 1. cos q = x. 2. sin q = y. 3. tan q = y/x. 4. sec q = 1/x. 5. cosec q = 1/y. 6. cot q = x/y. The six functions of q defined by the above equation are..

Find the amplitude of the trigonometric function from the graph shown. => - 1 or 4 or 1 or 0..

Find the period of the trigonometric function from the graph shown. => 4.5 π or π or 9 π or 5 π..

The following results have already been derived under Circular function..

Determine whether the relation is a function or not. => It is a function. or It is not a function. or It is a function with same domain and range. or cannot be determined..

When a relation becomes a function ? => For every input, there are fixed number of outputs or For every input, there are two outputs or For two inputs, there is exactly one output or For every input, there is exactly one output..

Determine whether the relation is a function. Give the domain and range of it, if it is a function. => It is not a function or It is a function; domain is 2, 3, 5, 7 and range is 11, 13, 17, 19 or It is a function; domain is 11, 13, 17, 19..

Relation between inverse functions: ..

Determine whether the relation graphed is a function or not. => yes or no..