MAFS.912.A-REI.4.11 - Explain why the x-coordinates of the points where the graphs of the equations y=f(x) and y= g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately (e.g., using technology to graph the functions, make tables of values, or find successive approximations). Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.