Steve And Kelly are twin siblings. They have a big advantage when doing homework! They can check their answers against one another. They were given this pattern, 7, 10, 13 16, 19? and were required to find the 25th, 75th, and 100th values.

Steve prefers to use graphs and Kelly prefers to use equations to solve these problems. If they found a different answer who would you think is likely going to be correct? Why?

Help would be much appreciated ^_^