How do you reflect a function across the x-axis (flip it upside down)?

Answer 1

To reflect a function across the x-axis (flip it upside down), you need to replace the y-values with their negatives.

1. Start with the original function, let's say it's f(x).
2. Replace each y-value in the function with its negative value, -f(x).
3. The resulting function, -f(x), is the reflected function across the x-axis.

For example, if the original function is f(x) = x^2, then the reflected function across the x-axis is -f(x) = -x^2.