Determine whether the indicated ordered pair lies on the graph of the given equation.y = 
- 4, (9, -1)
A. Yes
B. No
Answer: A
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Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
? y = x2 y = 
A. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 2, f(x) is not differentiable at 
B. Since limx?1+ f '(x) = 
while limx?1- f '(x) = 1, f(x) is not differentiable at 
C. Since limx?1+ f '(x) = 2 while limx?1- f '(x) = 
, f(x) is not differentiable at 
D. Since limx?1+ f '(x) = 2 while limx?1- f '(x) = 2, f(x) is differentiable at 
Use the Venn diagram below to find the number of elements in the region.
n(A ? B)
A. 14 B. 21 C. 11 D. 29
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 9
- 18
B. 9
- 2
C. 
D. 9
+ 18
Solve the equation.ln x + ln (x -1) = ln 6
A. x = 3
B. x = -2
C. x = 
D. x = 3, x = -2