Answer:
y = (-1 visit/block)x + 9 visits
6 visits
Step-by-step explanation:
The y-intercept is 9 (meaning 9 visits per week).
Note that (1, 8) is a point on the line.
To find the equation of this line, start with the slope-intercept form y = mx + b. We know that when x = 1, y = 8 and that the y-intercept, b, is 9. Therefore:
8 = m(1) + 9.
Solve this by subtracting 9 from both sides. We get:
-1 = m
The slope is m = -1 visits/block
and the desired equation is y = (-1 visit/block)x + 9 visits
If a particular coffee shop is 3 blocks away, we predict that the number of visits per week made to this shop is y = -1(3) + 9, or 6 visits
