Answer:
y = (2/3)x + 1.5
Explanation:
To get our equation, we must first convert our values from inches to feet.
8/12 = 2/3 or 0.666667...
18/12 = 3/2 or 1.5
Now that we have our inches converted to feet, we can plug our values into the equation y = m(x) + b.