Answer:
8. C.
9. A.
10. B.
Step-by-step explanation:
8. Take two points from the graph
example: (-1,0) and (0,-1) as (x1,y1) and x2,y2)
slope=(y2-y1)/(x2-x1)
=(-1-0)/(0--1)
=-1/1
=-1
9. Easiest way is to determine the y-intercept of the graph, which is -1
use the formula:
y=mx+b, where m is the slope and b is the y-intercept
y=-1x+(-1)
y=-x-1, rearranging
x+y=-1
10. y-intercept is a point along the y-axis
