An equation is represented by the model below What is the value of x that makes the equation true?

If you can may someone explain how to do this also? Thanks!​

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?

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Math it's appreciated. (picture provided)