Question

What is the domain and range of the relation shown in the table?

Answer 1

Answer:

domain: {10,15,19,32}

range:{5,9,-1}

Step-by-step explanation:

• As we know domain is the values of input and range is the values of output.

• Here , x is the input and y is the output.

• $\left[\begin{array}{cc}x&y\\10&5\\15&9\\19&-1\\32&5\end{array}\right]$

• Thus the input values according to the given problem is : 10 ,15 , 19, and thus ,

⇒The domain would accordingly be these four numbers : 10 , 15 , 19 , 32.

• Note that we donot have any information regarding the other values of x.

• The range is : { 5,9,-1 } only as the 5 is repeated in two cases .

• Range is unique and there must be not repetition. Thus the apt answer would be :

domain: {10,15,19,32}

range:{5,9,-1}