Parabolas

Y

yorkmanz

New member
Joined
Jan 10, 2019
Messages
32
2. Which of the following parabolas opens upward and appears narrower than y=−3x ^2 +2x−1 ?
o A. y= 4x^2 −2x−1
o B. y= − 4x^2 +2x−1
o C. y= x^2 +4x
o D. y= − 2x^ 2 +x+3

Answer:
A

CORRECT OR NOT

3. Which of the following parabolas is 2 units higher than y=2x^ 2 −4x−1 , but has the same shape and opens in the same direction?
o A. y=2x^ 2 −6x−1
o B. y=2x^ 2 −2x−1
o C. y=2x^ 2 −4x−3
o D. y=2x^2 −4x+1

Answer
D

CORRECT OR NOT


4. What are the coordinates of the vertex of the parabola y=x ^2 +2x−1 ?
o A. (−2,5)
o B. (−1,−2) ………
o C. (−2,−1)
o D. (−1,2)

Answer
B

CORRECT OR NOT


5. Which of the following equations has an axis of symmetry with the equation x=1.5 ?
o A. y=2x^ 2 −6x−1
o B. y=2x^ 2 −3x+1
o C. y=x ^2 +6x−3
o D. y=2x^ 2 +3x+2

Answer
A

CORRECT OR NOT

THANKS MUCH
 
Last edited:
yorkmanz said:
2. Which of the following parabolas opens upward and appears narrower than y=−3x 2 +2x−1 ?
o A. y= 4x^2 −2x−1
o B. y= − 4x^2 +2x−1
o C. y= x^2 +4x
o D. y= − 2x^ 2 +x+3

Answer:
A

CORRECT OR NOT

3. Which of the following parabolas is 2 units higher than y=2x 2 −4x−1 , but has the same shape and opens in the same direction?
o A. y=2x 2 −6x−1
o B. y=2x 2 −2x−1
o C. y=2x 2 −4x−3
o D. y=2x 2 −4x+1

Answer
D

CORRECT OR NOT


4. What are the coordinates of the vertex of the parabola y=x 2 +2x−1 ?
o A. (−2,5)
o B. (−1,−2) ………
o C. (−2,−1)
o D. (−1,2)

Answer
B

CORRECT OR NOT


5. Which of the following equations has an axis of symmetry with the equation x=1.5 ?
o A. y=2x 2 −6x−1
o B. y=2x 2 −3x+1
o C. y=x 2 +6x−3
o D. y=2x 2 +3x+2

Answer
A

CORRECT OR NOT

THANKS MUCH
Click to expand...
You have been asked twice before, if not more, to format your equations correctly. It appears to me that it is too much trouble for you to do that. So you know what, it is too much trouble for me to help you. Either do as we repeatedly asked you to do or please go elsewhere for help.
 
We use the caret symbol ^ to show exponents, when typing math expressions using a keyboard.

x^2 means x-squared

For more information about typing math expressions, check out the link in the forum guidelines titled, "Formatting Math as Text". :cool:
 
Otis said:
We use the caret symbol ^ to show exponents, when typing math expressions using a keyboard.

x^2 means x-squared

For more information about typing math expressions, check out the link in the forum guidelines titled, "Formatting Math as Text". :cool:
Click to expand...
Otis, this student has been told at least twice to use caret symbol. In fact when he was told in his last post that he would not be helped he fixed his post by using the caret symbol.
 
yorkmanz said:
2. Which of the following parabolas opens upward and appears narrower than y=−3x ^2 +2x−1 ?
o A. y= 4x^2 −2x−1
o B. y= − 4x^2 +2x−1
o C. y= x^2 +4x
o D. y= − 2x^ 2 +x+3

Answer:
A

CORRECT OR NOT

3. Which of the following parabolas is 2 units higher than y=2x^ 2 −4x−1 , but has the same shape and opens in the same direction?
o A. y=2x^ 2 −6x−1
o B. y=2x^ 2 −2x−1
o C. y=2x^ 2 −4x−3
o D. y=2x^2 −4x+1

Answer
D

CORRECT OR NOT


4. What are the coordinates of the vertex of the parabola y=x ^2 +2x−1 ?
o A. (−2,5)
o B. (−1,−2) ………
o C. (−2,−1)
o D. (−1,2)

Answer
B

CORRECT OR NOT


5. Which of the following equations has an axis of symmetry with the equation x=1.5 ?
o A. y=2x^ 2 −6x−1
o B. y=2x^ 2 −3x+1
o C. y=x ^2 +6x−3
o D. y=2x^ 2 +3x+2

Answer
A

CORRECT OR NOT

THANKS MUCH
Click to expand...
.
 
You must log in or register to reply here.
Top