Can you help me please

Using the graph below, select all statements that are true. a. f(0.6)=0 b. f(-3.2)=-3 c. f(5.1)=5 d. this is the graph of the greatest integer function. e. this graph is one-to-one.

Answer this question only if you know the answer! 30 points and

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)