Slop: second one (2/1)
Y-intercept: first one
Explanation
Slop is rise over run so how much it goes up or down on the top and how much it goes our right on the bottom
Y-intercept is where the point intersects with the y line so what point is on the y line
The total to this would be $1,389.93 because $1,299 + 7% = $1,389.93