Solve the problem.A function of the form y = a(x - h)2 + k is graphed below. Determine whether the constants a, h, and k are positive, negative, or zero.
A. a is positive, h is positive, k is zero
B. a is positive, h is negative, k is zero
C. a is positive, h is zero, k is positive
D. a is positive, h is zero, k is negative
Answer: B
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Solve the system.5w + x - 5y + z = -22-w + 5x + y - 5z = -23w - x + 5y + 5z = 28 w + x - 5y - z = -28
A. (3, -8, 0, 3) B. (-3, -6, 12, 3) C. (3, -4, 6, -3) D. (-4, 2, 7, 1)
Determine whether the given ordered pair is a solution of the system.(3, 6)3x + y = 154x + 3y = 30
A. solution B. not a solution
Your weekly cost (in dollars) to manufacture x cars and y trucks is given by
?
?
What is the marginal cost of a car? Of a truck?
?
A. Marginal cost of a car is 
marginal cost of a truck is 
B. Marginal cost of a car is
marginal cost of a truck is 
C. Marginal cost of a car is
marginal cost of a truck is 
D. Marginal cost of a car is
marginal cost of a truck is 
E. Marginal cost of a car is
marginal cost of a truck is 
Solve the equation.3(1 + 2x) = 27
A. -1 B. 9 C. 1 D. 3