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jonny [76]
2 years ago
5

What are true of the function f(x)=49(1/7)x? Check all that apply

Mathematics
2 answers:
ahrayia [7]2 years ago
7 0

The given function is : y= f(x) =49 [\frac{1}{7}]^x

The statements which are true regarding this function is

1. As you can observe that y is defined for all values of x , so Domain is set of all values that x can take which is set of all real numbers.

2. Also, x =\frac {\log[\frac{y}{49}]}{-\log7}, so x is defined for all values of y. Range is all values that y can take which is also set of all real numbers greater than zero, i.e y>0.

As ,x =0 then y= 49 and x_{1} =1 then y_{1}  = 7,

so ,y_{1} = \frac{y}{7}.

So, Option (1),(4) and (5) are correct.

VLD [36.1K]2 years ago
5 0
The domain is all real numbers
The Range is y > 0
AS x increases by 1 the value of y is 1/7 of previous value 
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