If $y = x^2 - 7$ and $x$ is a real number, then what is the minimum value possible for $y$?
Question:
If $y = x^2 - 7$ and $x$ is a real number, then what is the minimum value possible for $y$?
Answer:
Let's think step by step.

user
-7
If $y = x^2 - 7$ and $x$ is a real number, then what is the minimum value possible for $y$?
train