Chapter 9.1, Problem 2ACYP

(a)

To determine

To find: The domain and the range from the graph.

Answer to Problem 2ACYP

The required domain is $-\infty <x<\infty$ and the range is $-\infty <y\le 2$ .

Explanation of Solution

Given information:

The given graph is

From the graph it is seen that along the $x-\text{axis}$ curve goes from $-\infty \text{to}\infty$ . And along $y-\text{axis}$ it goes from $+2\text{to}-\infty$ .

Hence, the required domain is $-\infty <x<\infty$ and the range is $-\infty <y\le 2$ .

(b)

To determine

To find: The domain and the range from the graph.

Answer to Problem 2ACYP

The required domain is $-\infty <x<\infty$ and the range is $3\le y<\infty$ .

Explanation of Solution

Given information:

The given graph is

From the graph it is seen that along the $x-\text{axis}$ curve goes from $-\infty \text{to}\infty$ . And along $y-\text{axis}$ it goes from $3\text{to}\infty$ .

Hence, the required domain is $-\infty <x<\infty$ and the range is $3\le y<\infty$ .