Question

5. Classify the following as linear, quadratic and cubic polynomials:
1 x² + x
(ii) x-x^3

(iii) y + y2 + 4
(iv) 1+x
(v) 3t
(vii) 7x^4
(vi)r^2
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Answer 1

Answer:

1. quadratic

2. cubic

3. quadratic

4. linear

5 byquadratic

6 quadratic

Answer 2

Answer:

(i) The highest degree of x 2 + x is 2, so it is a quadratic polynomials.

(ii) The highest degree of x − x 3 is 3, so it is a cubic polynomials.

(iii)The highest degree of y + y 2 + 4 is 2, so it is a quadratic polynomials.

(iv) The highest degree of x in (1 + x) is 1, so it is a linear polynomials.

(v)The highest degree of t in 3t is 1, so it is a linear polynomials.

(vi)The highest degree of r 2 is 2, so it is a quadratic polynomials.

(vii)The highest degree of x in 7x 3 is 3, so it is a cubic polynomials.