Evaluate the expression when x = 2, y = 1, and z = 4.2z2
A. 16
B. 32
C. 18
D. 12
Answer: B
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Solve the problem.Brand A soup contains 854 milligrams of sodium. It is recommended that a person requiring 2000 calories daily consume 2500 mg of sodium or less per day. Graph the function, f, that computes the number of mg of sodium in x cans of soup together with y1 = 2500, y2 = 5000, y3 = 7500 in [0, 10, 1] by [0, 8000, 1000]. Use the intersection-of-graphs method to find how many cans of soup contain 1, 2, and 3 daily allowances of sodium.
A. 
1 allowance = 3 cans;
2 allowances = 5 cans;
3 allowances = 8 cans
B. 
1 allowance = 3 cans;
2 allowances = 6 cans;
3 allowances = 9 cans
C. 
1 allowance = 6 cans;
2 allowances = 9 cans;
3 allowances = 3 cans
D. 
1 allowance = 3 cans;
2 allowances = 6 cans;
3 allowances = 9 cans
Find the vertex of the parabola.f(x) = - 
x2 + 3x - 6
A. (9, -6)
B. (-9, -60)
C. 
D. 
If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.3x + y = 1612x + 4y = 64
A. (0, 16) B. (5, 1) C. Infinite number of solutions D. No solution
Determine whether f is continuous at c.f(x) = 5x4 - 7x3 + x - 6;c = 6
A. continuous B. not continuous