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Mathematics 15 Online
OpenStudy (anonymous):

Normal numbers ? xD http://gyazo.com/d74e56f02d4c6e5e44e8e3c06a590013

OpenStudy (anonymous):

@misty1212

OpenStudy (misty1212):

real normal, real easy

OpenStudy (misty1212):

what kind of line is \(y=4\) horizontal or vertical ?

OpenStudy (anonymous):

Horizontal, right?

OpenStudy (misty1212):

yes, that means the parabola opens up or down, and it means the x term is squared

OpenStudy (misty1212):

now go ahead and draw the line \(y=4\) and plot the vertex \((0,0)\)

OpenStudy (misty1212):

lol too many vertical lines

OpenStudy (anonymous):

Ohh so it'd be just one this time?

OpenStudy (anonymous):

Liiike this, one second.

OpenStudy (misty1212):

|dw:1422817176430:dw|

OpenStudy (anonymous):

Yeah xD I was about to re-draw.

OpenStudy (misty1212):

there is my coordinate axis add the line \(y=4\)and plot the point \((0,0)\)

OpenStudy (anonymous):

|dw:1422817251494:dw|

OpenStudy (misty1212):

ok got it now how about the focus?

OpenStudy (anonymous):

Errr..One sec . I need to go back to our last problem and take a look at it lol.

OpenStudy (misty1212):

it is the point \((0,-4)\) add it to your drawing

OpenStudy (anonymous):

I am unsure. Thought there was an example on the last problem.

OpenStudy (anonymous):

Oh, ok . One second.

OpenStudy (anonymous):

|dw:1422817487253:dw|

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