Complete Set of Numbers Assignment | Assignment Help Services

What is the complete set of numbers for which f(x) = x3 + 2×2 – x is concave?

• x ≥ -2/3
• x ≥ -3/2
• x ≥ 3/2
• x ≥ 1
• None of the above

For x = 1/2 the second derivative of f(x) = 2x−2 is

• 3/4
• 100
• 192
• 25
• None of the above

For x = 2, the slope of the function f(x) = x4 – 3×2 is

• 10
• 25
• 15
• 30
• None of the above

The inflection point for f(x) = x3 – 3×2 + x + 5 is

• x = 0
• x = 1
• x = -1
• x = 2
• None of the above

The unit cost of producing a steak dinner at the Smalltown Inn is $6. If a restaurant charges p dollars for a steak dinner, customers will demand 200 – 5p steak dinners per week. To maximize the profit earned on steak dinners, what price should the inn charge?

• $20
• $21
• $22
• $23
• $25