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Mathematics 20 Online
OpenStudy (justnick09):

Please Help

OpenStudy (justnick09):

@cherry18

OpenStudy (anonymous):

Im here hold on

OpenStudy (anonymous):

thats math not english

OpenStudy (jdoe0001):

what's the major axis length? what's the minor axis length?

OpenStudy (justnick09):

idk

OpenStudy (jdoe0001):

well.. take a peek at the graph

OpenStudy (justnick09):

i honestly dont really know what they mean

OpenStudy (jdoe0001):

well.. have you covered ellipses yet?

OpenStudy (justnick09):

but the lines are at 5 and 6

OpenStudy (justnick09):

we have but i didnt get it

OpenStudy (jdoe0001):

hmmm

OpenStudy (jdoe0001):

|dw:1427155335071:dw|

OpenStudy (justnick09):

oh ok

OpenStudy (jdoe0001):

hmm well... |dw:1427155466070:dw| the major axis is horizontal, that is, runs over the x-axis meaning the "a" will be under the "x" thus \(\bf \cfrac{(x-{\color{brown}{ h}})^2}{{\color{purple}{ a}}^2}+\cfrac{(y-{\color{blue}{ k}})^2}{{\color{purple}{ b}}^2}=1\qquad center\ ({\color{brown}{ h}},{\color{blue}{ k}}) \\ \quad \\ \cfrac{(x-{\color{brown}{ 0}})^2}{{\color{purple}{ 6}}^2}+\cfrac{(y-{\color{blue}{ 0}})^2}{{\color{purple}{ 5}}^2}=1\qquad center\ ({\color{brown}{ 0}},{\color{blue}{ 0}})\)

OpenStudy (justnick09):

im confused

OpenStudy (jdoe0001):

hmmm ok.. where?

OpenStudy (justnick09):

all of it can u jus tell me which one it is

OpenStudy (jdoe0001):

well... \(\bf \cfrac{(x-{\color{brown}{ h}})^2}{{\color{purple}{ a}}^2}+\cfrac{(y-{\color{blue}{ k}})^2}{{\color{purple}{ b}}^2}=1\qquad center\ ({\color{brown}{ h}},{\color{blue}{ k}}) \\ \quad \\ \cfrac{(x-{\color{brown}{ 0}})^2}{{\color{purple}{ 6}}^2}+\cfrac{(y-{\color{blue}{ 0}})^2}{{\color{purple}{ 5}}^2}=1\qquad center\ ({\color{brown}{ 0}},{\color{blue}{ 0}}) \\ \quad \\ \cfrac{x^2}{6^2}+\cfrac{y^2}{5^2}=1\implies ?\)

OpenStudy (justnick09):

...b?

OpenStudy (jdoe0001):

is it?

OpenStudy (justnick09):

i think so

OpenStudy (jdoe0001):

well... now you know which is "a" and "b" just simplify and you'd see which is it

OpenStudy (justnick09):

its b

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