CHAPTERS COVERED: #ARITHMETIC PROGRESSION & #QUADRATIC EQUATION

MARKS: 30

1. Find
the first five terms of the following sequences, whose nth terms are
given. t_{n} =
4n – 3

2. Which of the following lists of numbers are
Arithmetic Progressions? Justify.
1, 3, 6, 10, .....

5. What will be her salary after 20 months? [Ans.]
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6. Write the following quadratic
equations in standard form ax^{2 }+
bx + c = 0. 7 – 4x –x^{2} = 0 [Ans]

**7. **Solve the following quadratic equations by ** **factorization
method.** ** x^{2} – 5x +
6 = 0 [Ans.]

8. Solve the following quadratic equations by using
formula. m^{2} –
3m – 10 = 0 [Ans]

9. Determine the nature of the roots of the
following equations from their discriminants : y^{2} – 4y – 1 = 0 [Ans.]

10. Form the quadratic equation if its roots are
: 5 and – 7 [Ans.]