Lesson 2.7
 Step
Functions:
 The
greatest integer function is the
function f such that for every real number
x, f(x) is the greatest integer ≤ x.

Rounding down or the floor function
 Denoted,
 On
your calculator, MATH, NUM, 5 (INT)
INT (2π)
 Describe
all numbers x such that
 Describe
all the numbers x such that
 How
many buses are needed to transport
s students if each bus can hold 44
students and no other means of
transportation is used?
 Suppose
it costs $50 to rent a bus in the
last example. What will it cost to
transport 300 students?
Pages 131 – 133
8-13, 16,
19 - 21