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E needs algebra help again
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<blockquote data-quote="klmno" data-source="post: 550325" data-attributes="member: 3699"><p>And I'm letting him explain the question:</p><p></p><p></p><p>I need to know how to get the x and y intercept and the vertex of f(k)=k^2-14k-51. It just dosn't add up to me because i know (k-7)^2= k^2-14k+49. But, I'm not sure where the -51 came from. Also my teacher gave me the ansers for this one but i still dont understand how to get it: the y intercept=(0,-51) and the x intercepts= (17,0) and (-3,0) I'm sure if I could understand how to get this one I will be able to figure out my other 19 problems. Thanx hope you-all can help me. -E</p></blockquote><p></p>
[QUOTE="klmno, post: 550325, member: 3699"] And I'm letting him explain the question: I need to know how to get the x and y intercept and the vertex of f(k)=k^2-14k-51. It just dosn't add up to me because i know (k-7)^2= k^2-14k+49. But, I'm not sure where the -51 came from. Also my teacher gave me the ansers for this one but i still dont understand how to get it: the y intercept=(0,-51) and the x intercepts= (17,0) and (-3,0) I'm sure if I could understand how to get this one I will be able to figure out my other 19 problems. Thanx hope you-all can help me. -E [/QUOTE]
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E needs algebra help again
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