(Paper) CBSE : Class 9 Mathematics Unit Test Paper-01

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Time: 1.5 hrs.
M.M: 40

General Instructions:
1. All questions are compulsory.
2. Numerals in right side margin indicates the marks of respective questions.

	Section – A
1.	Give an example such that sum of two irrational numbers is a rational number.	1-mark
2.	Write the value of $\sqrt 2$ upto three decimal places.	1-mark
3.	Write the degree of polynomial 2 – y² – y³ + 2y⁸	1-mark
4.	Represent. 1.25 on the number line.	1-mark
5.	Why (x, y) $\ne$ (y, x)	1-mark
	Section - B
6.	What do you mean by ordered pairs	2-marks
7.	Expand (1 + X)³	2-marks
8.	If x + y + z = 0 then write the value of x x + y³ + z3 – 3xyz.	2-marks
9.	Write the factors of 12 ky²	2-marks
	Section - C
10.	Represent $\sqrt 3$ on the number line.	3-marks
11.	Show that $0.2\overline {35}$ can be expressed in the ${p \over q}$ form.	3-marks
12.	Visualize $4.\overline {26}$ on the number line upto 4 decimal places.	3-marks
13.	Renationalize the denominators of ${{7 + \sqrt 3 } \over {\sqrt 7  - \sqrt 2 }}$	3-marks
14.	Define zero of a polynomial. Also find zeros of polynomial P(x) = x² – 5x + 6	3-marks
	Section - D
15.	Draw the graph of X + 2y = 5 and 2x + 3y = 12 on the same graph. Using graph Check whether x = 1, y = 2 is the solution of x + 2y = 5	6-marks
16.	State remainder theorem and factor theorem. Factorize X³ – 23x² + 142x – 120 Using factor theorem.