Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial 

$-7+x$

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial 

$6y$

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial 

$-z^3$

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial 

$1-y-y^3$

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial.

$x-x^3+x^4$

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial.

$1+x+x^2$

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial.

$-6x^2$

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial 

Identify the given polynomial as constant, linear, quadratic, cubic and quartic polynomial.