Answer:
This is a fairly straightforward piecewise function. The functions can be determined if you give me the vertex and one additional point of the dip in the graph. I also need 2 points in the green line. I can help you better if you provide me with these details because the pic is not very clear. Hope this helped a little.
Step-by-step explanation:
1) Use the vertex formula y=a(x-h)+k where h and k is the vertex and solve for a with additional point you can plug in.
2) find the green line by using the y=mx+b formula
3) Use the y= some number formula for blue line.