94. Pressure and Depth At the surface of the ocean the water pressure is the same as the air pressure above the water, 15 lb/in?. Below the surface the water pressure increases by 4.34 lb/in? for every 10 ft of descent. (a) Find an equation for the relationship between pressure and depth below the ocean surface. (b) Sketch a graph of this linear equation. (c) What do the slope and y-intercept of the graph represent? (d) At what depth is the pressure 100 lb/in??

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.3: Lines
Problem 94E
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94. Pressure and Depth At the surface of the ocean the water
pressure is the same as the air pressure above the water,
15 lb/in?. Below the surface the water pressure increases by
4.34 lb/in? for every 10 ft of descent.
(a) Find an equation for the relationship between pressure
and depth below the ocean surface.
(b) Sketch a graph of this linear equation.
(c) What do the slope and y-intercept of the graph represent?
(d) At what depth is the pressure 100 lb/in??
Transcribed Image Text:94. Pressure and Depth At the surface of the ocean the water pressure is the same as the air pressure above the water, 15 lb/in?. Below the surface the water pressure increases by 4.34 lb/in? for every 10 ft of descent. (a) Find an equation for the relationship between pressure and depth below the ocean surface. (b) Sketch a graph of this linear equation. (c) What do the slope and y-intercept of the graph represent? (d) At what depth is the pressure 100 lb/in??
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