You didn’t add a screenshot. I’m sorry for answering but someone else will if I don’t.
A vertical line can only pass through the x axsis not the y unless it was at 0 then it would pass through all the y points. A diagonal line can pass through (-5,1) but not a vertical choose x=-5 if you want it to be a vertical line going through (-5,0)
Answer:
2500÷$3.21 =778.81
just round to the nearest whole number
-4 1/2, -2 3/8, 1.35, 5.6