which of the following equation are non linear?

Question

which of the following equations are non-linear?

a) y = -4x^2 - 7

b) 7 x - 9y = 118

c) -5/3x = 2y

d) y = 5x^3 + 8x

e) y = 9x + 2

and for each linear equation, rewrite in standard form.

Answer 1

The highest power of the independent variable, which is x in all 5 answers, is 1 for linear equations.

The highest power of x in

answer a is 2,

answer b is 1,

answer c is -1,

answer d id 3,

answer e is 1

Therefore, the a), c), d) are non linear.