Step Function Evaluation Part 2

[nycmathguy]

Section 1.6
Questions 27 & 29

See attachment.

Question 27

Part (a)

f(2.1) = [[2.1]] = 2

Part (b)

f(2.9) = [[2.9]] = 2

Part (c)

f(-3.1) = [[-3.1]] = -4

Part (d)

f(7/2) = [[7/2]] = [[3.5]] = 3

You say?

Question 29

Part (a)

k(1/3) = [[2(1/3) + 1]] = [[1.6]] = 1

Part (b)

k(-2.1) = [[2(-2.1) + 1]] = [[-3.2]] = -4

Part (c)

k(1.1) = [[2(1.1) + 1]] = [[3.2]] = 3

Part (d)

k(2/3) = [[2(2/3) + 1]] = [[2.3]] = 2

You say?

 

[MathLover1]

perfect!

 

[nycmathguy]

perfect!

This is it for the week in terms of precalculus. I will return to the course on Sunday. I may post a few word problems.