Question

We can’t understand how to find the pattern

Answer 1

Pattern: subtract 2 from the input to get the output

When the input is 9, the output is 7

When the input is 13, the output is 11

Explanation:

» Application + Solution

To find the pattern, we have to look for common things we notice between the input and output.

• After analyzing, we can surely notice that we subtract two from the input each time to get the output because 3 - 2 = 1, 8 - 2 = 6, 15 - 2 = 13, and 20 - 2 = 18.

Now that we realized the pattern, we subtract 2 from 9 and 13.

• 9 - 2 = 7
• 13 - 2 = 11