Sketch the graph of the equation. Identify the vertex and the intercepts.y = x2 + 4x - 7
A. vertex: (-2, 3);
x-intercepts: none;
y-intercept: (0, 7)
B. vertex: (-2, -11);
x-intercepts: (-2 ± 
, 0);
y-intercept: (0, -7)
C. vertex: (4, 0);
x-intercept: (4, 0);
y-intercept: (0, 7)
D. vertex: 
;
x-intercepts: (-4, 0) and (3, 0);
y-intercept: (0, -12)
Answer: B
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Given the following information, what is the economic ordering quantity (EOQ) for Nashville Records Inc.? ? Total demand (sales) = 15,625 units per year Selling price = $10 per unit Purchase price (cost) = $5 Carrying costs = 25 percent of inventory value Fixed cost per order = $1,000
A. 3,536 units B. 5,000 units C. 3,953 units D. 1,581 units E. 2,500 units
Add and simplify.
+ 
+ 
A. 
B. 
C. 
D. 
Determine the coordinates of the vertex by completing the square.f(x) = x2 + 2x - 7
A. (-1, -8) B. (1, -4) C. (-1, -10) D. (2, 1)
Solve the problem.The profit (in thousands of dollars) that a company earns from producing x tons of brass and y tons of steel can be approximated by 
Find the amount of brass and steel that maximize profit and find the value of the maximum profit.
A. 3 tons of brass and 6 tons of steel; maximum profit is $216,000
B. 
tons of brass and 
tons of steel; maximum profit is $118,833
C. 6 tons of brass and 3 tons of steel; maximum profit is $216,000
D. 
tons of brass and 
tons of steel; maximum profit is $157,977