If \(y = x^2 - 7\) and \(x\) is a real number, then what is the minimum value possible for \(y\)?
y = x^2 - 7
This is the parabola y = x^2 shifted down by 7 units
Thus.....the minimum value for y = -7
Here's a graph, Logic : https://www.desmos.com/calculator/torephbrbq
thanks CPhill you are the best!
Not the best.....but....I try hard .....LOL!!!!
+1207 
