SOLUTION: What values for x must be excluded in the following fraction: x-4 / 1 a)None b) 0 c) -4 d) 4 I believe the answer is 0 but I am not real sure on this one, thank you for t

Question 70434: What values for x must be excluded in the following fraction:
x-4 / 1
a)None
b) 0
c) -4
d) 4
I believe the answer is 0 but I am not real sure on this one, thank you for the help!
Answer by pleasuretohelp(9) (Show Source): You can put this solution on YOUR website!
x-4 / 1
a)None
b) 0
c) -4
d) 4
Think about substituting the possible values given in the multiple choices:
If we substitute x for 0, we have:
x-4 / 1
0-4 / 1
-4 / 1
-4 (this is ok)
If we substitute x for -4, we have:
x-4 / 1
-4-4 / 1
-8 / 1
-8 (this is ok)
If we substitute x for 4, we have:
x-4 / 1
4-4 / 1
0 / 1
0 (this is ok)
So, all answers are ok, which means NONE must be excluded.
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