Question

Which are true of the function f(x)=49(1/7)?select three options. A)The domain is the set of all real numbers. B) the range is the set of all real numbers. C) the domain is x >0. D)the range is y>0. E)as increases by 1, each y value is one -seventh of the previous y-value.

Answer 1

Answer:

A,D and E

Step-by-step explanation:

We are given that a function

$f(x)=49(\frac{1}{7})^x$

The given function is exponential function .

The exponential function is defined for all real values of x.

Therefore, domain of f=Set of  all real numbers

Substitute x=0

$y=f(0)=49>0$

Range of f is greater than 0.

x=1

$y(1)=\frac{49}{7}$

x=2

$y=49(\frac{1}{7})^2=\frac{1}{7}y(1)$

As x increases by 1, each value of y is one-seventh of the previous y-value.

Therefore, option A,D and E are true.

Answer 2

Answer:

A D E

Step-by-step explanation:

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