Question

is 9x + 3y - 18 = 0 linear?
Answer
is y = (x^2) - 3x + 2.25 linear?
Answered by GPT 3.5
Yes, the equation 9x + 3y - 18 = 0 is linear because all the terms involve only variables raised to the power of 1 (x and y) and there are no products or powers of variables involved.
Answered by GPT 3.5
No, the equation y = (x^2) - 3x + 2.25 is not linear because it contains a term with x raised to the power of 2 (x^2), which makes it a quadratic equation. In linear equations, the variables are raised only to the power of 1.