I need help right now

On a piece of paper graph f(x)=5•(0.4)^x

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)

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?