pls help I will give brainleist and all my points! but you can only get the points if you actually answer

At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

What is the y-intercept of the line given by the equation