Identify the pattern and find the next number in the pattern -1,3,7,11
Mathematics · Middle School · Thu Feb 04 2021
Answered on
Given the pattern:
-1, 3, 7, 11
Identify the next number in the pattern.
Solution:
In order to identify the next number in the pattern, we must first find the common difference, to do so, we subtract the first term to the second term.
1st term = -1
2nd term = 3
Common Difference = 2nd term - 1st term
Common Difference = 3 - (-1)
Common Difference = 3 + 1
Common Difference = 4
Now since we know that 4 is the common difference, we simply need to add 4 to 11 to determine the next number.
= 11 + 4
= 15
Final answer:
The next number in the pattern is 15.