Can someone tell me what are the steps to solving this?

The general equation of an ellipse is

where:

So, in your case, we have , and the equation will look like this:

Moreover, we know that the major axis is horizontal (i.e. it involves the x coordinate). Its length is 8, which implies

Similarly, the minor axis has length 4, which implies

So, the complete equation is

2/3

step-by-step explanation: