Solve the system by substitution.
A. (-6, 6)
B. (6, -5)
C. (5, -5)
D. (6, -6)
Answer: D
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Use division properties of one and zero to quickly determine the quotient, or state that the expression is undefined.0 ÷ 34
A. 34 B. Undefined C. 0 D. 1
In an adiabatic process (one in which no heat transfer takes place), the pressure P and volume V of an ideal gas such as oxygen satisfy the equation 
where C is a constant. Suppose that at a certain instant of time, the volume of the gas is 2L, the pressure is 100 kPa, and the pressure is decreasing at the rate of 5 kPa/sec. Find the rate at which the volume is changing.
a. 14 L/sec
b. C–14 L/sec
c. C–
d. 
Solve the problem.Find the standard form of the equation of the circle. Assume that the center has integer coordinates and the radius is an integer. 
A. x2 + y2 - 2x + 4y - 4 = 0 B. x2 + y2 + 2x - 4y - 4 = 0 C. (x - 1)2 + (y + 2)2 = 9 D. (x + 1)2 + (y - 2)2 = 9
Determine the slope and y-intercept. Then use the slope and y-intercept to graph the equation by hand.y = -3
A. slope: -3, y-intercept: (0, 0)
B. slope: 0, y-intercept: (0, -3)
C. slope: -3, y-intercept: (0, 0)
D. slope: undefined, y-intercept: (-3, 0)