it started at -10.5 then rose 5.2
-10.5 +5.2 = -5.3
then fell 3.6
-5.3 - 3.6 = -8.9
so it was -8.9 degrees Celcius
An alternating series is an infinite series that takes the form:
∑(-1)ⁿa_n
a_n>0 for every value of n. The signs of the general terms alternate between positive and negative.
Thus from the above definition, the series given by <span>2, 3, 6, 8, . . . does not fit the definition of alternating series.</span>
I believe it’s just one answer :)
Recall that

and

Then the given sequence could be written as

Answer:
(0,-2)
Step-by-step explanation:
Since the linear equation is in the form of y = mx+b, where b is the y intercept, we get that -2 is the y-intercept.