Find any numbers for which the rational expression is undefined.
-$\frac { 4 } { z - 7 }$
A)z = 7
B)z = 0
C)z = -7
D)none

Name: Find any numbers for which the rational expression is undefined. -$\frac { 4 } { z - 7 }$ A)z = 7 B)z = 0 C)z = -7 D)none
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Question

Quizplus · Accepted Answer

A rational expression is undefined when its denominator equals zero. For the given expression $\frac{4}{z-7}$, it is undefined when $z-7 = 0$, which solves to $z = 7$.

Find Any Numbers for Which the Rational Expression Is Undefined 4z−7\frac { 4 } { z - 7 }z−74​

Find Any Numbers for Which the Rational Expression Is Undefined $\frac { 4 } { z - 7 }$