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Mathematics 10 Online
OpenStudy (anonymous):

Help please?? What are the foci of the following graph?

OpenStudy (anonymous):

OpenStudy (anonymous):

im not sure about this and i might not make any sense but i think the number 2? sorry i hate math :/

OpenStudy (amoodarya):

\[center=(\frac{+6-4}{2},2)=(1,2)\\2a=6-(-4)=10\\a=5\\so\\\frac{(x-x_{center})^2}{a^2}-\frac{(y-y_{center})^2}{b^2}=1\\\frac{(x-1)^2}{5^2}-\frac{(y-2)^2}{b^2}=1\]

OpenStudy (amoodarya):

now note that graph meet (8,0) or ((-6,0) so you can find b then \[c^2=a^2+b^2\]

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