For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
We have the following equation:

So:
, the slope is positive

For the graph, we place the point on the coordinate axis:

We draw the line!
The graphic is attached.
ANswer:
, the slope is positive

(2,1)
a vertex is the highest or lowest point of a parabola!
hope this helps :)
The value is -8 of the expression
Green is 4 and Purple is 6 so you put it in a fraction by adding all of them and the just green and purple so 10/30 simplified is 1/3.