Choose the expression that represents a linear expression. 6x + 6 −6x2 + 8x − 9 8x3 + 9x2 − 10x + 11 7x4 − 8x3 + 9x2 − 10x + 11

Option a) 6x+6 is correct.

The given expression 6x+6 represents a linear expression.

Step-by-step explanation:

Definition: Linear expression  is a mathematical statement defining an equality. It is usually a polynomial equation having degree 1. It can be written as linear relationship with variables and a constant.

6x+6 expression represents a linear expression

Because it has degree 1.

Therefore Option a) 6x+6 is correct.

The given expression 6x+6 represents a linear expression.

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.