Multiply both sides of the first equation by

:

This is quadratic in

; to make this clear, substitute

. Then

One of these solutions for

is negative. But, if

is real, then

is always supposed to be positive, so we can throw out the negative root, leaving

.
We actually don't have to solve for

exactly. We can just rewrite the next two equations in terms of

.


Since

, we get

Take another picture can’t see too good
Hello there,
To calculate slope all you need to do is find two points on the graph.
(a,b) (c,d)
Then you use the formula to find slope.
d minus b divided by c minus a.
Hope I helped :)
~Char
Answer:
im not sure about this one but I think its 45°