1) The function f is dened as: x+1, lx 1 a. Find f{1),f(10)and f(1) [3] b. State the domain of the function [2] c. Find the intercepts of f(x} [3] d. State with reason whether the function f(x) is continuous on its domain [2] 2) In May 2006, Edison Electric supplied electricity to residences for a monthly customer charge of $ 125.50 plus $1.79 per kilowatt-hour (kWhr) for the first 1000 kWhr supplied in the month and $2.55 per kWhr for all usage over IUUUkWhr in the month. a) What is the charge for using 300 kWhr in a month? [2] b} What is the charge for using 1500 kWhr in a month? [4] c) If C is the monthly charge for using x kWhr, express C as a function of x. [4]