Question

answer please...,...​

Answer 1

Answer:

4)z+1

Step-by-step explanation:

hey mate

here is your answer

linear expression is an algebric expression in which different terms present have highest degree of the polynomial 1...

for example:

1)2y+57+3 is a linear expression as the highest power of the variable y is only 1

2)68 is not a linear expression as the highest power of the variable is 0.these terms are called as absolute constant.

[0 because it can be written as 68x^0]

3)2j+7k is also a linear expression as the degree of the expression is 1...

Now,back to your question,

1)x²+2+y is not a linear expression as the degree of the expression is 2 rather it is a quadratic expression.

2)y+y²+3 is also not a linear expression as the th e degree of the expression is 2.

3)4 is also not a linear expression.

4)z+1 is a linear expression as the degree of the expression is 1..