Question

I need help here please.

Answer 1

Step-by-step explanation:

Linear function:

$y=mx+b\\Ax+By=C\\Ax+By+C=0$

$y=x\qquad\bold{YES}\\\\y=7\qquad\bold{YES}\\\\2y=x^2\qquad\bold{NO}\ \boxed{x^2}\\\\y=4x^2+3x\qquad\bold{NO}\ \boxed{x^2}\\\\3x+4y=12\qquad\bold{YES}\\\\2x^2+6y=12\qquad\bold{NO}\ \boxed{x^2}$

Answer 2

Answer:

Equations 3, 4, and 6 are nonlinear equations.  

Step-by-step explanation:

See attachment.