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Wote the following In the intercepis and domain, and perform the wymmetry text on each of the few lor'259' = 400 4xy!=64 Ox+4y= 36 (h) 7x' w-112

User Dave Sottimano
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1 Answer

17 votes
17 votes

h) the initial equation is:


7x^2+8y^2=112

So to find the intercepts we replace x = 0 and y = 0 so:


\begin{gathered} 8y^2=112 \\ y^2=14 \\ y=\sqrt[]{14}=\pm3.74 \end{gathered}

So the y interceps are 3.74 and -3.74 now for x


\begin{gathered} 7x^2=112 \\ x^2=16 \\ x=\pm4 \end{gathered}

So the domain will be:


\mleft\lbrack-4,4\mright\rbrack

In this case is centered in 0 and the domain is symetic so the function is symetric

User Leonardkraemer
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