step function questions

Step function questions 1 ) The value of 2 ’– 10.1÷ is: A) -20 B) 22 C) 20 D) -22 .2) Put these in standard form then state the vertical separation, horizontal length of the steps, whether it’s steps up or down, open left or right: f (x) = ’ x 2 − 52 ÷ g (x) = ’ x − 20 5 ÷ h (x) = ’ x5 − 20÷ m(x) = 5’ x 10 ÷ + 30 n (x) = ’ x5 ÷ q (x) = 4( 5 − 2’x÷ ) + 1 3) A salesperson earns $25 commission per sale of $500 worth of merchandise per week. She also earns a base salary of $600 each week. a) Write the rule for and graph the step function which represents her weekly earnings. b) How much will she earn in a week when her sales total is $950? c) How much would she have to sell for in order to earn $625 in a week. (interval).