Question

Draw the graph of function 9-X . find its domain and range from graph. Also verify domain and range of above mentioned function algebraically.

Answer 1

Step-by-step explanation:

to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the

x

x-axis. The range is the set of possible output values, which are shown on the

y

y-axis. Keep in mind that if the graph continues beyond the portion of the graph we can see, the domain and range may be greater than the visible values.

Graph of a polynomial that shows the x-axis is the domain and the y-axis is the range

We can observe that the graph extends horizontally from

−

5

−5 to the right without bound, so the domain is

[

−

5

,

∞

)

[−5,∞). The vertical extent of the graph is all range values

5

5 and below, so the range is

(

−

∞

,

5

]

(−∞,5]. Note that the domain and range are always written from smaller to larger values, or from left to right for domain, and from the bottom of the graph to the top of the graph for range.

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