What is another name for the derivative when looking at a function graphically? A triangle that must contain pairs of points whose slopes are the opposite, reciprocal of each other is what kind of triangle? And what would we say the lines are to each other?

Sketch the graph of fx=5e0.17x.

When examining the formula of a function that is the result of multiple transformations, how can you tell a reflection with respect to the x-axis from a reflection with respect to the y-axis?