Solution:
The model is given in slope intercept form y = mx + b , where m is the slope and b the y intercept.
The constant 2117, which can be viewed as the y intercept is the function value when d = 0.
This means the pressure on the surface of water = 2117 lb/ft^2.
The number 62.5 can be related to 'm' the slope in a linear equation. It is the rate at which the pressure is increasing for every ft below the water surface.
P(d) = 62.5d + 2117
P(200) = 62.5(200) + 2117 = 12,500 + 2,117 = 14,617 lb/ft^2.
Algebra Word Problems is a branch of mathematics, which is most useful in the application of mathematical analysis.