Now apply what you read about vertical shifts.
What do you notice about the four graphs you graphed from the equations in the opening explore?
a) \(f(x) = x^2\)
b) \(f(x) = x^2 +2\)
c) \(f(x) = x^2 -3\)
d) \(f(x) = x^2 -5\)
What conclusions can you draw? How do you know?