Find the domain of the function.f(x) = ln 
A. x > 7
B. x > -7
C. x > 1
D. x > 0
Answer: B
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Use the substitution formula to evaluate the integral.
A. -ln 3 B. -ln 2 C. ln 3 D. 0
Identify equilibrium values and determine which are stable and which are unstable.
= y2 - 16
A. y = 4 is a stable equilibrium value and y = -4 is an unstable equilibrium. B. y = -4 is a stable equilibrium value and y = 4 is an unstable equilibrium. C. y = -4 and y = 5 are stable equilibrium values. D. There are no equilibrium values.
Find the slope and the y-intercept.-4x + 5y = -9
A. m = 20; (0, -45)
B. m = 
; 
C. m = 4; (0, -9)
D. m = 
; 
Solve the problem.A rock is propelled upward from the top of a building 270 feet tall at an initial velocity of 168 feet per second. The function that describes the height of the rocket in terms of time t is 
Determine the time at which the rock reaches its maximum height.
A. 4.2 sec B. 10.5 sec C. 8.4 sec D. 5.25 sec