Find f (-5) if f (x) = Ix+1I

Question

Mathematics

Maci

12 March, 03:17

Find f (-5) if f (x) = Ix+1I

+5

Answers (2)

Know the Answer?

Kathleen Rich · Answer 1

substitute x for - 5

f (-5) = |-5+1|

f (-5) = |-4|

however, absolute value is the distance from 0 and so is always positive since you cannot have negative distance.

so f (-5) = 4

Asa Woodward · Answer 2

x = 4

Step-by-step explanation:

f (x) = I x+1 I

when x = - 5

f (-5) = I (-5) + 1 I

= I - 5+1 I

= |-4|

= 4