What is the slope of -2,-5 and 18,-5

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

Is there an x intercept in the equation 60*1.15^x

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?