January 11th, 2019, 06:23 PM  #1 
Newbie Joined: Jan 2019 From: tornto Posts: 2 Thanks: 0  help quadratic
5. Which of these quadratic functions has exactly one xintercept? A. y = x^2 âˆ’ 9 B. y = x^2 âˆ’ 6x + 9 C. y = x^2 âˆ’ 5x + 6 D. y = x^2 + x âˆ’ 6 A 2. What are the xintercepts of y = (x âˆ’ 2)(x + 5) ? A. (0, 2) and (0, 5) B. (0, 2) and (0, 5) C. (2, 0) and (5, 0) D. (2, 0) and (5, 0) D 2. Which of the following parabolas opens upward and appears narrower than y = âˆ’3x^2 + 2x âˆ’ 1 ? A. y = 4x^2 âˆ’ 2x âˆ’ 1 B. y = âˆ’4x^2 + 2x âˆ’ 1 C. y = x^2 + 4x D. y = âˆ’2x^2 + x + 3 C Are my answers correct or not? Thanks Guest Last edited by skipjack; January 11th, 2019 at 07:33 PM. 
January 11th, 2019, 07:34 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,089 Thanks: 1902 
Your answer to 5 is incorrect. The correct answer is B. Your answer of D for 2 is correct. Your final answer of C is incorrect. The correct answer is A. You had posted 5 twice, so I removed the duplicate. 

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