Is 7y+2x = 11 a linear equation why?

it is linear. Linear equations are to the power 1, both x and y are simple, order 1 equations.

x^2+4y=8 would not be linear.

thank you

Yes, the equation 7y + 2x = 11 is a linear equation. A linear equation is any equation that can be written in the form Ax + By = C, where A, B, and C are constants and x and y are variables. In this case, we have 2x + 7y = 11, so we can see that the coefficients of x and y are constants, and there are no variables with exponents or functions of x and y. Therefore, it is a linear equation.