-9 GOOD LUCK ON YOUR TEST!!!!
Answer:
825 miles
Step-by-step explanation:
Divide starting number by nine to get 55. Then multiply 55 by 15 to get 825 miles
A = 1000(1.06)^t where A is the amount of the investment after t years.
A relation is a function if & only if for each value of x we have (at the most) one & only one value of y.
In short if we have a repeat value of x that correspond to 2 different values of y then it's not a function but a relation instead
Let's take the 1st example:
x I y
---------I-------
1 I 2
3 I 2
3 I 3
4 I 2
We notice that there are 2 SAME VALUE of x (that is 3) that have various value of y, Hence this is not a function. Mind you this concerns x ONLY.
In short a function doesn't allow a repeat of same x.
Follow this methodology & you will find the other problems