Answer: y = x - 1
Step-by-step explanation:
The yellow points are located at the points (1, 0) and (8, 7)
For a linear equation that pases trough the points (x1, y1) and (x2, y2), the slope is:
s = (y2 - y1)/(x2 - x1)
Then, for our equation, the slope is
s = (7-0)/(8-1) = 1
Then our linear equation is
y = 1*x + b
where b is the y-axis intercept.
To find b, we can use that when x = 1, y = 0
0 = 1*1 + b
b = -1
Then our equation is y = x - 1
