Hello can you all answer these 2 questions

Number 7-    +3

Number 8: slope: -4

                   y- intercept: +140

Step-by-step explanation:

for the first question, i picked the points (0, 2) and (-1, -1). i used the slope form y2-y1/x2-x1 or in this case -1-2/-1-0 which equals to -3/-1=3. for the second question you subtract 120-140/5-0 which equals -20/5 simplified to -4 and the y intercept is 140 because x=0

Hope this helped! :))

answer: .75 km

step-by-step explanation: