How do i do this ? i’m having trouble with it on penn foster

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

The collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set

How do u write a function for the reflection across the y axis