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Chapter 11: Q18. (page 728)

State the excluded value for each function.

y=鈭�12x+8

Short Answer

Expert verified

Excluded value of the function is 鈭�4.

Step by step solution

01

Step 1. Exclude the values.

Exclude the values for which 2x+8equals 0.

2x+8=0

02

Step 2. Subtract.

Subtract 8 on each side of the above obtained equation.

2x+8鈭�8=0鈭�82x=鈭�8

03

Step 3. Divide.

Divide each term by 2.

2x2=鈭�82x=鈭�4

xcannot equal to 鈭�4. Therefore, the excluded value is x=鈭�4.

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