Question
What is the left-hand limit of f(x) = |x-3|/x-3 as x approaches 3?
A.1
B.2
C.0
D.-1
E.-2
A.1
B.2
C.0
D.-1
E.-2
Answers
Reiny
sub in a number like 2.999
f(2.999) = |2.999-3|/(2.999-3) = .007/-.007 = -1
f(2.999) = |2.999-3|/(2.999-3) = .007/-.007 = -1