The equation of the line passing through 
and 
is
. Here
is the slope of the line.
Substituting numerical values, the equation of the line is
The equation of the line is 
Answer:
A: an = 6n - 9
Step-by-step explanation:
third term in an arithmetic sequence is 9
a3 = a + 2d
a + 2d = 9
the fifth term is 21
a5 = a + 4d
a + 4d = 21
a + 2d = 9 (1)
a + 4d = 21 (2)
Subtract (1) from (2) to eliminate a
4d - 2d = 21 - 9
2d = 12
d = 12/2
d = 6
Substitute d = 6 into (1)
a + 2d = 9 (1)
a + 2(6) = 9
a + 12 = 9
a = 9 - 12
a = -3
nth term of this sequence = a + (n - 1)d
= -3 + (n - 1)6
= -3 + 6n - 6
= 6n - 9
an = 6n - 9
Answer / Explanation
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Question:
The stem and leaf plot shows kilometers walked by participants in a charity benefit walk. Use it to answer the question
12|3 3 6 7 9 9
13| 1 1 4 5 5
14| 0 0 2 3 3 8 8 9
15| 2 2 2 2 2 3 5 5 7
16| 4 5 5 9 9
17|3 5
(a) How many people participated in the walk? Exactly 35 people participated in the walk.
(b)How many of the walkers traveled more than 14 kilometers? About 16-22 people traveled more than 14 kilometers.
Answers:
(a) Exactly 35 people participated in the walk.
(b) About 16-22 people traveled more than 14 kilometers.
Answer:
5
Step-by-step explanation:
Arrange the numbers from smallest to largest
1,2,5,8,9
The middle number is the median
5 is the middle number
5 is the median
