Answer:
81/4
Step-by-step explanation:
I know this because I did this before
Given:
The table of values for the function f(x).
To find:
The values
and
.
Solution:
From the given table, it is clear that the function f(x) is defined as:

We know that if (a,b) is in the function f(x), then (b,a) must be in the function
. So, the inverse function is defined as:

And,

...(i)
Using (i), we get

Now,


Therefore, the required values are
and
.
Hope this helps :))
...............................
You can add 8 to both sides so you get
x>5
Answer:
"How much did Wang Yong pay each month" answer: $170
"How long did it take Wang Yong to pay back his entire debt?" answer: 50 months