4 1/2 is the exact answer. 5 is the estimate.
Answer:
The slope is
.
Step-by-step explanation:
The equation is conveniently in slope-intercept form.

m - slope
b - y-intercept
-2/3 is in m's spot, so it is the slope of the equation.

Hope this helps.
Answer:
y = x.
Step-by-step explanation:
From the graph we see that the line passes through the origin (0, 0) and the point (8,8), so the slope is (8-0) / (8-0) = 1.
The y intercept is at (0.0).
y =- mx + c is the slope intercept form so m = 1 and c = 0 and the answer is
y = 1x + 0
y = x.