Continuity ...
Smarties Inverted Double Spiral (-1,2)

A function f is continuous at x = a then we must have the
following three conditions.
1. f(a) is defined; in other words, a is in the domain of f.
2. The limit
must exist.
3. The two numbers in 1. and 2., f(a) and L, must be equal
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The three types of discontinuity ...

at x = 3 at x = 0

at x = 3 at x = 3
Practice by choosing one of these quizzes ...

DIFFERENCE
FACTORING
FACTORING BY GROUPING

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Let's practice with this quiz ...