Question

In the following exercises, graph.

$\frac{{\left(y+4\right)}^2}{25}-\frac{{\left(x+1\right)}^2}{36}=1$

Short answer

The graph is as below

Step-by-step solution

Step 1. Given information

The equation is$\frac{{\left(y+4\right)}^2}{25}-\frac{{\left(x+1\right)}^2}{36}=1$

Draw the graph.

Step 2. Calculation

The y² term is positive, the transverse axis is vertical.

The hyperbola opens up and down.

Find the centre

Compare the equation with standard form$\frac{{\left(y+k\right)}^2}{a^2}-\frac{{\left(x+h\right)}^2}{b^2}=1$

So, $\left(h,k\right)=\left(-1,-4\right)$ and $a^2=25\Rightarrow a=\pm 5$

$b^2=36\Rightarrow a=\pm 6$

Sketch the rectangle that goes through the points 5 units above/below the centre

6 units left/right of centre

Step 3. Draw the graph

Sketch the asymptotes through the diagonals of the rectangle.

The graph is