116k views
1 vote
Which are true of the function f(x) = 49(1/7)^x Check all that apply.

User Jecki
by
6.5k points

2 Answers

4 votes

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.

User VaTo
by
7.0k points
4 votes

Answer: 1. 4. 5. are it, now keep scrolling;)

Explanation:

User Daniel Zhang
by
6.4k points