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Q.

Which of the following is a linear expression?


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a

x 2 +1

b

y+ y 2

c

4

d

1+z  

answer is D.

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Detailed Solution

We have to find the linear expression.
1+z As per the definition given above, the highest power of the variable in the expression should be 1. In the above expression, the highest power of variable z is 1.
Thus, 1+z is a linear expression
Therefore, option 4 is correct.
 
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