Having trouble with subtracting and regrouping mixed numbers. 5 1/8 -2 4/8.

What is the equation of the parabola with focus (-1,-1) and directrix y=1?

If u answer this u will get good luck for a year

This activity will you meet these educational goals: mathematical practices-you will make sense of problems and solve them, reason abstractly and quantitatively, and usemathematics to model real-world situations.directionsread the instructions for this self-checked activity type in your response to each question, and check your answers. at theend of the activity, write a brief evaluation of your work.