If by d2 you mean d squared then it is non linear
It is linear.
5xy+4=9
104
2 squared plus 2 x 3 = 10, 7 squared plus 7 x 2 = 63, 6 squared plus 6 x 5 = 66,8 squared plus 8 x 4 = 96 so 9 squared plus 9 x 7 = 81 + 63 = 144.
If by d2 you mean d squared then it is non linear
It is linear.
Nonlinear
Linear. The only power for the variables is 1.
5xy+4=9
It is linear because you're just adding numbers. There are no exponents.
no you smell
linear
No, it is not an example of a nonlinear relationship because there is a steady rate of change.
No, it is not.No, it is not.
Two equations: a linear one in y and a quadratic in x.
No, It's a a quadratic equation because you have X squared.