### Home > A2C > Chapter 4 > Lesson 4.3.2 > Problem 4-151

4-151.

Shortcut Shuneel claims he has a short cut for finding the vertex of a parabola. While using his short cut on *y* = 2*x*^{2} + 3*x* +1, he ended up with

Create *x*-*y* tables for each function and graph them.

Are they the same? If not, what is the difference?

and compare it to Shuneel's original problem.

These are different functions, so unfortunately, Shortcut Shuneel's shortcut does not work.

The value of '*c*' does not match up.