Question

Classify the following as linear, quadratic and cubic polynomials.

(1)$x^2+x$

(2)$x-x^3$

(3)$y+y^2+4$

(4)1 + x

• A. Quadratic, cubic, quadratic, linear
• B. Quadratic, quadratic, quadratic, linear
• C. Cubic, cubic, quadratic, quadratic
• D. Linear, cubic, quadratic, linear

Answer 1

The correct option is A

Quadratic, cubic, quadratic, linear

The degree of the variable decides whether the polynomial is linear, quadratic, cubic, etc.,

(1)$x^2+x$ $\to$ Degree of x is 2

(2)$x-x^3$ $\to$ Degree of x is 3

(3)$y+y^2+4$ $\to$ Degree of y is 2

(4)1 + x $\to$ Degree of x is 1