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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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) c
B) a
C) d
D) b

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

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

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

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

A) false
B) true

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

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

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

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

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

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

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

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

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

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

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

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

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

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