Is [(1,2), (2,5), (3,8), (2,-5), (1,-2)] a function if not why not

No

Step-by-step explanation: A function is a relation in which each x-term corresponds to exactly one y-term.

The easiest way to tell whether or not this relation is a function is to look at the x-coordinates of the given ordered pairs.

If any of the ordered pairs in this relation have the

same x-coordinate, then the relation is not a function.

Notice that two of the ordered pairs have the same x-coordinate.

They are (2,5) and (2,-5).

Since each x does not pair with exactly one y,

we know that this is not a function.

boxplot e is the answer

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.