<u>The error is that they had placed the numbers in the wrong placeholder.</u> Remember that the Distance formula is
.
<em><u>Correct Work:</u></em>

Answer:
B. 4
Step-by-step explanation:
The given function is of the form:

A is called the amplitude of the given function.
We can read from the graph that, the function ranges between:
-4 and 4
This implies that:

Therefore the amplitude of the function is 4.
Hence the value of A must be 4.
Answer:
nb bhvghvghvhjhkj
Step-by-step explanation:
bjnbhv hgv
Circumference is given by

Area is given by

figure out the radius of the circle, then use it to find area