The second because it's set at the power of 2, none of the other ones have a set exponent.
Answer:
An equation is linear if its graph forms a straight line. This will happen when the highest power of x is 1. Graphically, if the equation gives you a straight line then it is a linear equation. Else if it gives you a circle, or parabola, or any other conic for that matter it is a quadratic or nonlinear equation.
Answer:
sorry i dont know but this is for a challenge
Step-by-step explanation:
Answer:
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Step-by-step explanation:
I am confused but thats my guess