To graph the six terms of a finite sequence, we first need to understand how the terms are generated based on the given information. In this case, the sequence starts with the first term, denoted as a1
, which is equal to 5, and has a common ratio r
equal to 125.
The formula for the n
th term of a geometric sequence is:
an = a1 * r(n-1)
Using this formula, we can calculate the first six terms:
- Term 1:
a1 = 5
- Term 2:
a2 = 5 * 125(2-1) = 5 * 125 = 625
- Term 3:
a3 = 5 * 125(3-1) = 5 * 1252 = 5 * 15625 = 78125
- Term 4:
a4 = 5 * 125(4-1) = 5 * 1253 = 5 * 1953125 = 9765625
- Term 5:
a5 = 5 * 125(5-1) = 5 * 1254 = 5 * 156250000 = 781250000
- Term 6:
a6 = 5 * 125(6-1) = 5 * 1255 = 5 * 195312500000 = 976562500000
Now that we have our six terms: 5, 625, 78125, 9765625, 781250000, and 976562500000.
To graph these values, follow these steps:
- Set up a coordinate system where the x-axis represents the term number (from 1 to 6) and the y-axis represents the value of each term.
- Plot each of the points corresponding to the calculated values:
- Point (1, 5)
- Point (2, 625)
- Point (3, 78125)
- Point (4, 9765625)
- Point (5, 781250000)
- Point (6, 976562500000)
Due to the exponential growth of the sequence values, the graph will demonstrate a steep ascent, illustrating how quickly the terms increase as n
increases. This characteristic of geometric sequences (especially with a high common ratio) results in a powerful visual representation of growth that is both informative and striking.