Quantitative reasoning quiz which best describe what is happening in section b

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4