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Maths Puzzle
Number System
y = -ln(x+2)
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Book Other Question
Which of the following are functions Expalin your reasoning for a,b,c. Keep the definition of a fuction strongly in a mind as you do this problem. Think about whether the relationship between f{x) and x is consistnet with being a function or not and explain your reasonong?
a. f(x) = 2 if x>1
f(x) = -1 otherwise
b. f(x)= 5 if x>0
f(x) = -5 if x <0
f(x) = 5 or -5 if x=0
c. f(x)= 10/x
f(x) = 2 + log 3^x