Consider the following graph. 65
60
50
45
.
40
35
Total Monthly Cost of Hot Yoga
30
25
20
15
10
5
0
0
1
2
3
4
5
6
7
8
9
10 11
Number of Hot Yoga Practices in a Month
Part A: What is the slope of the line? What does the slope represente
Part B: What is the y-intercept? What does the y-intercept representa
Part C: Define the variables and write a function that represents this
situation.
Part D: What does each point represent?

Consider the following graph.

65

60

50

45Explanation:30

25

20

15

10

5

0

0

1

2

3

4

5

6

7

8

9

10 11

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

the areas around the equator