Reflections Given: f(x) = x2

Reflection about the y axis: f(x) = (-x)2

Reflection about the x axis: f(x) = -(x)2

This is NOT a question but I just don't understand what this means! I will be very thankful if someone will be able to help me with this (reflections in PreCalculus grade 9)

Which of the following could be the graph of the equation y = -2x + 5

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

If g^-1(x) is the inverse of g (x) which statement must be true