Answer:
Not sure what function notation is, but I am pretty sure it wants the equation in point-slope form. If that is the case then it's y=1/4x-5
Step-by-step explanation:
I graphed the points and then used the formula y=mx+b, in which m is the slope and b is the y-intercept. I found the slope and intercept and just plugged them in. I would show a picture, but it's not letting me add a screenshot. If you need to show work, graph the points and show how to find the slope and maybe label the y-intercept or something.