Find the vertices and foci of the hyperbola with equation x squared over sixteen minus y squared over forty eight = 1.
\(\bf \cfrac{(x-{{ h}})^2}{{{ a}}^2}-\cfrac{(y-{{ k}})^2}{{{ b}}^2}=1
\qquad center\ ({{ h}},{{ k}})\qquad
vertices\ ({{ h}}\pm a, {{ k}})
\\ \quad \\\\
foci\to h\pm c\quad where\quad c=\sqrt{a^2+b^2}\to h\pm \sqrt{a^2+b^2}\\
----------------------------\\
\textit{now, let's see your hyperbola}
\\ \quad \\
\cfrac{x^2}{16}-\cfrac{y^2}{48}=1\implies \cfrac{(x-0)^2}{4^2}-\cfrac{(y-0)^2}{(\sqrt{48})^2}=1\)
and surely, you can see where the center is at, thus what h,k are,
and what "a" and "b" components are as well :)
Answer:
Vertices are (4,0),(-4,0).
Foci are (8,0), (-8,0).
Step-by-step explanation:
Given : The hyperbola equation \(\frac{x^2}{16}-\frac{y^2}{48}=1\)
To find : The vertices and foci of the hyperbola ?
Solution :
The general form of the hyperbola equation is
\(\cfrac{(x-{{ h}})^2}{{{ a}}^2}-\cfrac{(y-{{ k}})^2}{{{ b}}^2}=1\)
Where, (h,k)=(0,0) is the center.
\(a^2=16\\a=4\) and \(b^2=48\\b=\sqrt{48}\)
The vertices of the hyperbola is,
\(V=(h\pm a,k)\)
Substitute the value,
\(V=(0\pm 4,0)\)
\(V=(4,0),(-4,0)\)
Therefore, Vertices are (4,0),(-4,0).
Foci is \(F=(\pm c,0)\)
Where, \(c=\sqrt{a^2+b^2}\)
\(c=\sqrt{4^2+\sqrt{48}^2}\)
\(c=\sqrt{16+48}\)
\(c=\sqrt{64}\)
\(c=8\)
\(F=(\pm 8,0)\)
Therefore, Foci are (8,0), (-8,0).