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Mathematics 17 Online
OpenStudy (anonymous):

Locate the vertical tangent lines

OpenStudy (anonymous):

OpenStudy (anonymous):

i need to answer qn 69, but i have no idea how to graph the given functions...

OpenStudy (agent0smith):

You could make tables of values, or use a calculator.

Directrix (directrix):

@ememlove Here's the graph of 69a. It may help. Take a look. http://www.wolframalpha.com/input/?i=y+%3D+%28x-2%29%5E%281%2F3%29+

Directrix (directrix):

x = 2 seems to fit the requirements. See what you think. You have three more to do. I assume that you can use technology. http://www.wolframalpha.com/input/?i=lim++of+abs%28+1%2F%5B3%28x-2%29%5E%282%2F3%29%5D%29+as+x+--%3E+2

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