Use the vertical line test to determine whether or not the graph is a graph of a function.
A. No
B. Yes
Answer: A
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Find all the roots of the complex number. Put answers in standard form.Square roots of 4 + 4
j
A. 
- 
j, - 
+ 
j
B. - 
- 
j, 
- 
j
C. 
+ 
j, - 
- 
j
D. 
+ 
j, - 
- 
j
Solve the problem using the quadratic formula.When water runs out of a hole in a cylindrical container, the height of the water in the container can often be modeled by a quadratic function. Assume that the height of the water in a particular metal can with a small hole can be modeled by h = 0.0005x2 - 0.15x + 8, where x is the time (sec) and h is the height (cm). Use the quadratic formula to estimate the time when the height is 6 cm. Round your answer to the nearest second.
A. 21 sec B. 20 sec C. 18 sec D. 14 sec
Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.
+ 
= 
A. x = 
B. x = 
C. x = 
D. x = 
Provide an appropriate response.If a, b, and c are real numbers, is this statement true or false? 
A. True B. False