Question

Which of the following is a linear expression? * 1 point A) x^2+1 B) y+y^2 C)12-5z D)none​

Answer 1

I hope this answer helps you

Answer 2

Answer:

A linear equation is an algebraic equation consisting of variables and constants and equality sign in which each term has an exponent of one

If you plot the solutions of a linear equation in Cartesian Coordinate system the results in a straight line.

Here the equation is x² + 1

So the variable is x

Since the highest power of x in the expression is

So it is not a linear equation

Here the equation is y + y²

So the variable is y

Since the highest power of y in the expression is

So it is not a linear equation

Here the equation is 4

It can be rewritten as

\sf{4 = {x}^{0} }4=x0

So the variable is x

Since the highest power of x in the expression is

So it is not a linear equation

Here the equation is 1 + z

So the variable is z

Since the highest power of z in the expression is 1

So it is a linear equation

FINAL ANSWER

Hence the correct option is (d) 1 + z