Answer:
The temperature was -14 degrees.
Step-by-step explanation:
The word "dropped" indicates that one has to subtract to the result. -3 - 11 is -14.
To determine the sum of the arithmetic series, simply remember that i is the pattern that you are going by which is 1,2,3.
The top value on the sigma sign tells you the final value that you must go to.
So use the equation to go from 1 to 18. So it would be 2(1) + 9 + 2(2) + 9 etc.
51 = 3k. We can switch this around to 3k = 51 (because it's easier for me)
3k = 51.
We divide by 3 on both sides to just get "k".
3k / 3 = 51 / 3
k = 17.
You have not provided a function, however, normally when the instructions say to use graphs, you just need to graph it in your calculator and then take a look at it to see what the limit will be at the requested x value. Remember to write your asymptote as a linear equation once you identify it from the graph.
