Answer:
1) Use two points to find the slope
Points from the graph
Find the slope:
- m = (2 - (-1))/(1 - 0) = 3
Slope is 3, y-intercept is -1
The line is:
This is non-proportional as not passing through the origin (0, 0)
2) One point is sufficient to determine the slope as the line passes through the origin
Point (5, 2)
The slope is
Line is:
This is proportional
3) is answered here: https://brainly.com/question/23004781
