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NONSENSE = REPORT

1. What is the nature of the roots of a quadratic equation whose discriminant is zero ?
A. Not real
B. Real and equal
C. Irrational and not equal
D. Rational and not equal
2. What is the sum of the roots of the quadratic equation m² + 2m - 5 = 0 ?
A. - 2
B. 2
C. - 5
D. 5
3. Which of the following equations represents a quadratic function ?
A. y = 5x + 2
B. y = x² - 8
C. 2y² = - 6 + 3x
D. y = 3x + 2²
4. What is the vertex of the quadratic function on the right ?
A. ( 0 , 1 )
B. ( 0 , - 1 )
C. ( - 1 , 0 )
D. ( 1 , 0 )
5. Which of the following equations has a graph obtained by moving the graph of
y = x² , 3 units to the right ?
A. y = ( x + 3 ) ²
B. y = 3x²
C. y = ( x - 3 ) ²
D. y = - 3x²
6. Which of the following situations shows direct variation ?
A. Number of items unsold and commision of the seller.
B. Fare of the passenger to the distance of destination.
C. Number of students in a classrooms and size of available space.
D. Speed of the car to the time spends in travelling a certain distance.
7. A car travels a distance ( d ) kilometer in t hours. The formula that relates d to t is d = kt. if k = 10, what is the variation statement ?
A. d = 10 t
B. d = 20 t
C. d = 30 t
D. d = 40 t
8. What is ( 3² + 5x ) ?
A. 0
B. 1
C. 3² + 5x
D. 9 + 5x




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Sagot :

thaddying

1.What is the nature of the roots of a quadratic equation whose discriminant is zero?

- B. REAL AND EQUAL

2.What is the sum of the roots of the quadratic equation m² + 2m - 5 = 0?

- A. -2

3.Which of the following equations represents a quadratic function ?

- A. y = 5x + 2

4.What is the vertex of the quadratic function on the right ?

- B. ( 0 , - 1 )

5.Which of the following equations has a graph obtained by moving the graph of

y = x² , 3 units to the right ?

- B. y = 3x²

6.Which of the following situations shows direct variation ?

- A. Number of items unsold and commision of the seller.

7.A car travels a distance ( d ) kilometer in t hours. The formula that relates d to t is d = kt. if k = 10, what is the variation statement ?

- A. d = 10 t

8.What is ( 3² + 5x ) ?

- D. 9 + 5x

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