Question

C

2
6.28
3
9.42
5
15.70
10
31.40
what explicit formula describes the pattern of this table

Answer 1

y - 6.28 = 3.14( x - 2 )

Explanation:

Notice that 6.28 is twice the approximate value of pi: 2(3.14), and that

9.42 is three times pi. We can deduce immediately that the slope of the line passing through (2, 6.28) and (3, 9.42) is 3.14.

Using the point-slope formula for the equation of a straight line, we get:

y - 6.28 = 3.14( x - 2 )