At the surface of the ocean, the water pressure is the same as the air pressure above the water, about 15 lb/inch square , Below the surface the water pressure increases by about 3.94 lb/inch square for every 10 ft of descent.
Write a function f(x) which expresses the water pressure in pounds per square inch as a function of the depth in inches below the ocean surface.
2006-09-23 14:19:31 · 5 answers · asked by John W 1 in Education & Reference ➔ Homework Help
f(x)= 15 + 472.8x,
where x is the number of inches below the ocean's surface
2006-09-23 14:30:40 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Let's make a table of feet below the surface and water pressure.
Feet below surface (x) Water pressure(y)
0 15
10 18.94
20 22.88
These numbers will form ordered pairs. (0,15) and (10,18.94) can be used to find the slope of the line. Then use the point-slope formula to find an equation for the line. The point-slope formula is y - y1 = m(x - x1) where m is the slope and x1 and y1
are the coordinates of one of the points.
2006-09-23 21:36:17 · answer #2 · answered by PatsyBee 4 · 0⤊ 0⤋
I believe Me M is correct.
2006-09-23 22:06:43 · answer #3 · answered by Ray M 6 · 0⤊ 0⤋
try math.com they have tutors and homework help on the website hope this helps
2006-09-23 21:21:54 · answer #4 · answered by kimber1731 2 · 0⤊ 0⤋
try using hotmath.com
2006-09-23 21:28:11 · answer #5 · answered by PhizZingFree 4 · 0⤊ 0⤋