Determine whether the equation defines y as a function of x.x = y2
A. y is a function of x
B. y is not a function of x
Answer: B
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Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. - 
D. 
Perform the specified calculation.For the vector u = 
, calculate |2u|.
A. 2
B. -2
C. 
D. 2
Solve the problem. 
7 =
A. 13 
- 8
B. 13
C. 13 
+ 8 
D. 13 
+ 8
E. none of these
The function f is one-to-one. State the domain and the range of f and f-1. Write the domain and range in set-builder notation.f(x) = 6x - 2
A. f(x): D = {x|x > 6}, R is all real numbers; f-1(x): D = {x|x < 6}, R is all real numbers B. f(x): D is all real numbers, R = {y|y > -2}; f-1(x): D is all real numbers, R = {y|y < -2} C. f(x): D is all real numbers, R is all real numbers; f-1(x): D is all real numbers, R is all real numbers D. f(x): D = {x|x > 6}, R = {y|y > -2}; f-1(x): D = {x|x < 6}, R = {y|y < -2}