Grade 9- 1st Quarter
Quiz by Angelina Ambas
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- Q1
Which of the following is a quadratic equation?
2x2 - 4x + 8
2y - 4x =10
2(4x - 3) = 0
25 - r2 = 4r
30sM9AL-IIa-1 - Q2
Which of the following quadratic equations is equal to x (x + 3) - 5 = 0?
x2 - 3x + 5 = 0
x2 + 3x - 5 = 0
x2 - 3x - 5 = 0
x2 + 3x + 5 = 0
30s - Q3
Which of the following quadratic equations can be solved easily by extracting the square roots?
x2 + 7x +12 = 0
3v2 + 2v - 8 = 0
2w2 + 7w - 3 = 0
4t2 - 9 = 0
30s - Q4
What is the graph of a quadratic function?
zigzag
line
parabola
circle
30s - Q5
This method of solving quadratic equations transforms the equation in the form, ax2 + bx = c, what method is this?
Completing the square
Factoring
Quadratic Formula
Extracting the square roots
30s - Q6
What is the nature of the roots of the roots of a quadratic equation if the value of its discriminant is less than zero or negative?
The roots are rational and unequal
The roots are irrational and unequal
The roots are rational and equal
The roots are not real
30s - Q7
Which of the given equation is linear?
x(x-4)=6
x2+5x-14=0
4x+8=5
2x2+4x-10=0
30s - Q8
What is the nature of the roots of the roots of a quadratic equation if the value of its discriminant is equal to zero?
The roots are not real
The roots are rational and unequal
The roots are rational and equal
The roots are irrational and unequal
30s - Q9
In the equation 2x2 - 5x + 1 = 0, what is the value of a, b and c?
a = 2 , b = 5 , c = 1
a = 2 , b = -5 , c = 1
a = -2 , b = -5 , c = -1
a = 2x2 , b = -5x , c = 1
30s - Q10
Which of the following is the solution set of the equation y = x2 + 3x + 2?
-1 and 2
-1 and -2
1 and 2
1 and -2
30s