SOLUTION: Which one is a linear equation? Select one: a. 7x b. 4x+2-6^x4 c. -3+2x^2+5 d. x^3+2x^2+5

Question 961644: Which one is a linear equation?
Select one:
a. 7x
b. 4x+2-6^x4
c. -3+2x^2+5
d. x^3+2x^2+5
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
a linear equation has the highest exponent of any variable in the equation as 1.

examples of linear expressions:
5
x
x+y
x+y+3
the highest exponent is 1.

x is equivalent to x^1
5 is equivalent to 5 * x^0

out of your selections, the only one that is linear is selection a.

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