Khan academy assignment

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

The variable in a relation who’s value depends on the value of the independent variable is called what?

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!