Question

20 POINTS! HELP!

Choose the expression that represents a linear expression.

A. −17x^4 − 18x^3 + 19x^2 − 20x + 21
B. 18x^3 + 19x^2 − 20x + 21
C. 23x^2 + 24x − 25
D. 4x + 4

Answer 1

The answer to this question is D.

Answer 2

D is correct

Explanation:

A linear expression contains no higher power exponents than 1

Only D satisfies this as 4x+4 is the same as 4x^1+4

Hope this helped!