1-Suppose (1,-2) is on the graph of y=f(x). Find a point on the graph of the transformed function y= f(x+5).

2-A plumber charges $80 for a service call plus $30 per hour.

a. Find a line function that represents the total daily charges C, in dollars, as a function of the time t, in hours, spent at a given location.

b. If the total charge was $140, how many hours did he work?