Originally Posted by

**gwalker11** Ok, this is going to sound stupid... because I am majoring in math... and have been graphing simple graphs for years...... but I was just tutoring a kid.. and was trying to figure out a quadratic equation from looking at the graph.... and I have a complete brain fade.

So.... if the equation is y = (1/4)x^2

I thought.... you would make a table multiply by the reciprocal..

*4 | x | y|

-8 | -2|4

-4| -1| 1

0 |0 |0

4 |1 |1

8 | 2 |4

12|3 |9

but to do it the other way... clearly when x=2.. y = (1/4)x^2 = 2*2*0.25 = 1

.... but in the way high school tells you to do horizontal stretch... why is it saying when x is 4, y is 1?

What am I missing?