There are 2 ways that spring to mind.
One is to use the definition of the derivative at a point:

In this case,
and
. Then

- - -
If you don't know about derivative yet (I would think you do, considering this is for a midterm in AP Calc, but I digress), the other way is to rely on algebraic manipulation. Multiply the numerator and denominator by the conjugate of the numerator to get

This is continuous at
, so the limit is the value of the expression at
:

Answer:
B
Step-by-step explanation:
many different values of x lead to the same value of y.
hence, many-to-one.
but it does not mean that all values of x have to lead to the same value of y. it could be, but it is not demanded. so, it is not necessarily a horizontal line.
and this does not give us any information about the power of x involved. so, we cannot make any statement about linear or non-linear function.
Answer:
Y = 7X + 2
Step-by-step explanation:
Y = mx + b .... slope intercept form of a line.
m - Slope
b = Y - intercept.
Answer:
Mean = 2.95
Median = 3
Step-by-step explanation:
The mean of the number of visits of 40 adults to the gym is

The median of the data is the average number between 20th and 21th terms (because 40 is even number, so the middle term is the average between two middle terms).
20th term = 3 visits
21th term = 3 visits
Hence, median is 3 visits
To find this you multiply the 2 numbers together. 3*3/4=2.25.
2.25 in fraction form is