Find the point-slope form of the equation that is described.Slope is 
, y-intercept is (0, 4)
A. y - 0 = - 
(x - 4) or y = - 
(x - 4)
B. y - 
= 
(x - 0) or y - 
= 
x
C. y - 4 = 
(x - 0) or y - 4 = 
x
D. y - 0 = 
(x - 4) or y = 
(x - 4)
Answer: C
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Solve the problem.A company estimates that the revenue (in dollars) from the sale of x units of doghouses is given by 
Use the differential to approximate the change in revenue from the sale of one more doghouse when 850 doghouses are sold.
A. $70.00 B. $0.87 C. $0.70 D. $87.00
Find the particular solution to the given differential equation that satisfies the given conditions.D4y + 2 D3y - 15 D2y = 0; y = 0, Dy = 9, D2y = 27, and 
when x = 0
A. y = -3 - 3e3x B. y = c1 + c2x + c3e3x + c4e-5x C. y = -3 + 3e-3x D. y = -3 + 3e3x
Solve the problem.Two pipes can fill a large tank in 10 hours. One of the pipes, used alone, takes 15 hours longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 12.5 hr for one 25 hr for the other B. 10 hr for one 20 hr for the other C. 15 hr for one 30 hr for the other D. 25 hr for one 50 hr for the other
Solve the equation.
- 8 = 0
A. 
B. ?
C. {64}
D. 