Question No 3:
The function is Linear as highest power is 1.
Quadratic Term: None
Linear Term: x
Constant: -1
Question No 4:
The function is Quadratic as highest power is 2.
Quadratic Term: 2x^2
Linear Term: -3x
Constant: 5
Question No 5:
The function is Quadratic as highest power is 2.
Quadratic Term: 3x^2
Linear Term: 15x
Constant: None
Question No 6:
The function is Linear as highest power is 1.
Quadratic Term: None
Linear Term: 3x
Constant: -5
Question No 7:
The function is Quadratic as highest power is 2.
Quadratic Term: -2x^2
Linear Term: -8x
Constant: None
Explanation:
Question No 3:
The term given is:

Simplifying:

So, the function is Linear as highest power is 1.
Quadratic Term: None
Linear Term: x
Constant: -1
Question No 4:
The term given is:

Simplifying:

So, the function is Quadratic as highest power is 2.
Quadratic Term: 2x^2
Linear Term: -3x
Constant: 5
Question No 5:
The term given is:

Simplifying:

So, the function is Quadratic as highest power is 2.
Quadratic Term: 3x^2
Linear Term: 15x
Constant: None
Question No 6:
The term given is:

Simplifying:
It is in simplest form.
So, the function is Linear as highest power is 1.
Quadratic Term: None
Linear Term: 3x
Constant: -5
Question No 7:
The term given is:

Simplifying:

So, the function is Quadratic as highest power is 2.
Quadratic Term: -2x^2
Linear Term: -8x
Constant: None