1st quarter exam Alig Grade 9 Math

1. It is a polynomial equation of degree two that can be written in the form

, where a, b, and c are real numbers and a ≠ 0.

A) Linear Equation
B) Quadratic Equation
C) Quadratic Inequality
D) Linear Inequality

A) c
B) a
C) b
D) d

A) a
B) d
C) b
D) c

A) c
B) d
C) a
D) b

A) b
B) a
C) c
D) d

A) d
B) a
C) b
D) c

A) b
B) c
C) a
D) d

A) c
B) a
C) b
D) d

A) Edna
B) Both
C) None of them
D) Luisa

A) c
B) a
C) b
D) d

A) a
B) b
C) d
D) c

A) -9
B) -9, 9
C) 9
D) none of the above

13. x + 7 = 0, by zero-product property x = _____?

A) undefined
B) 0
C) 7
D) -7

A) a
B) d
C) c
D) b

A) a
B) d
C) b
D) c

A) a
B) c
C) b
D) d

A) 25
B) 16
C) 36
D) 49

A) d
B) b
C) c
D) a

A) a
B) c
C) b
D) d

A) d
B) b
C) a
D) c

A) c
B) a
C) d
D) b

A) c
B) b
C) d
D) a

A) d
B) a
C) c
D) b

A) a
B) d
C) b
D) c

A) d
B) a
C) b
D) c

A) a
B) d
C) c
D) b

A) c
B) d
C) b
D) a

A) a
B) b
C) d
D) c

A) c
B) b
C) a
D) d

A) b
B) d
C) a
D) c

A) a
B) d
C) b
D) c

A) b
B) c
C) d
D) a

34. What are the roots of the equations. (x+2) (x+3) = 0

A) 2 & -3
B) -2 & 3
C) -2 & -3
D) 2 & 3

A) a
B) c
C) d
D) b

A) b
B) d
C) c
D) a

A) c
B) b
C) d
D) a

A) c
B) a
C) d
D) b

39. When the discriminant is zero, then the roots are real numbers and equal.

A) false
B) true

A) 25
B) 49
C) 64
D) 36

A) 12
B) 6
C) 3
D) 9

42. When the discriminant is negative, then the nature of the roots is _____.

A) real and equal
B) real, irrational and unequal
C) real, rational and unequal
D) Imaginary and no real roots

43. When the discriminant is perfect square, the nature of roots is _____.

A) real, irrational and unequal
B) Imaginary and no real roots
C) real and equal
D) real, rational and unequal

44. When the discriminant is not a perfect square, the nature of roots is____.

A) real and equal
B) Imaginary and no real roots
C) real, irrational and unequal
D) real, rational and unequal

45. When the discriminant is less than 0, then the nature of roots is _____.

A) real and equal
B) real, rational and unequal
C) Imaginary and no real roots
D) real, irrational and unequal

46. What is the nature of roots of quadratic equation if the discriminant is 100?

A) real and equal
B) Imaginary and no real roots
C) real, rational and unequal
D) real, irrational and unequal

A) 8
B) 2
C) 6
D) 4

A) b
B) a
C) c
D) d

A) 9
B) 14
C) 12
D) -9/2

A) a
B) d
C) b
D) c

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