This is how you do it: (in the picture)
Answer:
a function is just a comparison between two quantities so when you go to plot the points, the input is x and the output is y.
You multiply 0.6 by 5x and 10 and you get 3x+6=-24. you then subtract 6 from both sides of the equation and you get 3x=-30. after that you divide both sides by 3 and you get x=-10. so the answer is B!
C. because her distance from home is decreasing