Decide whether the graph represents a function.
A. Function
B. Not a function
Answer: B
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A function f is continuous at the point 
if the following conditions are satisfied.
?
1. 
is defined.
2. 
exists.
3. 
.
?
Determine the values of x, if any, at which the function is discontinuous. At each point of discontinuity, state the condition(s) for continuity that are violated.
?
?
?
A. 
; conditions 1, 2
B. 
; conditions 2, 3
C. 
; conditions 1, 2
D. 
; condition 2
E. Continuous everywhere.
Draw a diagram to illustrate the following number.2
What will be an ideal response?
Solve the problem.Find the cost function if the marginal cost function is C'(x) = 12x - 3 and the fixed cost is $2.
A. C(x) = 6x2 - 3x + 1 B. C(x) = 12x2 - 3x + 1 C. C(x) = 6x2 - 3x + 2 D. C(x) = 12x2 - 3x + 2
Simplify the expression. Assume that all variables represent non-negative real numbers.5
- 2
- x
A. 14x2
- x
B. 13x
C. 14x
D. 2x