several ordered pairs from a continuous exponential function are shown in the table. what are the domain and range of function?

A. the domain is the set of integers, and the range is y = 4.

B. the domain is the set of integers, and the range is y = 0.

C. the domain is the set of real numbers, and the range is y = 0.

D. the domain is the set of real numbers, and the range is y = 4.

several ordered pairs from a continuous exponential function are shown in the table what are the domain and range of function A the domain is the set of integer class=

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hdhe15

the answer is b......

Answer with Explanation:

The points when plotted on two dimensional plane, forms a continuous exponential function curve

x     0      1       2             3

y      4     5      6.25    7.8125

If you plot the points on the coordinate plane and try to find the exponential function,the function can be written as

 [tex]y=4 e^{\frac{x}{4.50}}[/tex]

Domain of a function is defined as set of x values ,for which y is defined.

For,every real value of x , y is defined.

Domain = Set of real numbers=(-∞,∞)

Range of a function is defined as set of y values ,for which x is defined.

[tex]e^{\frac{x}{4.50}=\frac{y}{4}}\\\ \frac{x}{4.5}=\log\frac{y}{4}\\\\ x=4.5\log\frac{y}{4}[/tex]

Log of any function is defined for , positive real numbers that is numbers between 0 to ∞.

→Range =(0,∞).

So,→ domain of the function is Set of Real numbers and Range is y>0.

None of the option among four options is true.

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