#### Answer

Unchanging factor

#### Work Step by Step

In the expression 4 + x, 4 is a(n) constant and x is a variable. It makes sense that 4 is a constant since it is a number by itself which will not change.

Published by
Pearson

ISBN 10:
0-32184-874-8

ISBN 13:
978-0-32184-874-1

Unchanging factor

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