Question

What is the slope of this graph?

Answer 1

Since the slope is falling, instead of rising, it would be negative. 

Now, on the line, I plotted (0, 2) and (-2, 10).

You would now plug this into the rise/run formula. 
The formula is $\frac{y2 - y1}{x2 - x1}$

The equation would become, 
$\frac{10 - 2}{-2 - 0}$ = $\frac{8}{-2}$ = -4

I believe the answer would be -4. 

I hope this helps!