Mathematics, 26.11.2020 04:10, india73
Write the letter of the correct answer on your answer sheet. If your answer is not found among
the choices, write the correct answer.
For items 1-5, refer to the graph at the right.
1. Which of the following could be the equation of the parabola?
A. = ( β 2)2 + 1 C. = ( + 1)2 + 2
B. = ( + 2)2 + 1 D. = ( β 1)2 + 2
2. Determine the y- intercept of the graph?
A. = β5
C. = 5
B. = β3
D. = 3
3. What is the range of the parabola?
A. {:β₯1}
C. {:β₯ -1}
B. {:β€1}
D. {:β€ -1}
4. What is the axis of symmetry of the graph?
A. x = 2
C. y = 2
B. x = 1
D. y = 1
5. What is the vertex of the parabola?
A. (-2, -1)
C. (2, 1)
B. (-2, 1)
D. (2, -1)
6. Describe the graph of () = β2 + 6 β 24
A. Opens to the right
C. Opens to the left
B. Opens upward
D. Opens downward
7. What is the y-intercept of the parabola defined by the equation = ( + 2)2?
A. -4
B. -2
C. 2
D. 4
8. What is the minimum value of the graph of the quadratic function = 2 + 4?
A. -4
B. -2
C. 2
D. 4
9. What is the vertex of the parabola having the equation y = (x β 3)2 + 1?
A. (3, -1)
B. (-1, 3)
C. (1, 3)
D. (3, 1)
10. What is the vertex form of the equation =2β4+7?
A. =(β2)2β3
C. =(+2)2β3
B. =(β2)2+3
D. =(+2)2+3
11. The equation of the axis of symmetry of the function = β22 + 5 is.
A. x = 5
C. β 4
3
B. x= -2
D. 5
4
12. Which of the following equations of parabola has a wider opening? A. y = 1
4
2
C. y = 3x2 B. y = 1
2
2
D. y = 5x2
13. Determine the equation of the resulting graph when the parabola with the equation
y = x2 + 3, is shifted 4 units downward.
A. y = x2 β 4
C. y = x2 + 1
B. y = x2 β 1
D. y = x2 + 7
For items 14-15, refer to the graph at the right.
14. Which of the following could be the equation of the parabola?
A. = β2 + 5
C. = 2
2
+ 5
B. = β 2
2
= 5
D. = 2 + 5
15. What is the vertex of the parabola?
A. V(-5, 0)
C. V(0, 5)
B. V(0, -5)
D. V(5, 0)
Answers: 1
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