Please help me, i dont have graph paper, and im not sure about number 1

Answer:
from the values you get
*make a dotted line to intersect the line (do this for both the highest value and lowest value)
* subtract the lowest value from the lowest value
that will be the slop for yaxis
Answer:
The person is right brainly user all answers will be correct if wrong
Step-by-step explanation:
So please use this answer if you wan't or do not