how do you reflect a function across the x-axis (flip it up side down)?

Question

Multiply by a negative coefficient

Use an irrational exponent

Subtract a number larger than 10

Change the variable

Answer 1

Reflecting a function across the x-axis is done by multiplying the function by -1. This will effectively flip the function upside down. No irrational exponents or subtracting a number larger than 10 is necessary. Additionally, changing the variable will not achieve the reflection across the x-axis.