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anonymous
 5 years ago
what are the xintercepts and mininum point(s) for the equation x^2+8x+16
anonymous
 5 years ago
what are the xintercepts and mininum point(s) for the equation x^2+8x+16

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Do you know how to factor?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0That is how you find the xintercepts. You are wanting factors of 16 that add to get 8 1 * 16 ? 2 * 8 ? 4 * 4? which one?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Good so it factors into (x + 4)(x + 4)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So you take each of those and solve for each of them = 0 x + 4 = 0 (since they are both the same you only do this once) x = 4 so this graph only touches the xaxis at 4

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0If your x^2 term is positive then the graph opens upward and you have a minimum if your x^2 term is negative then the graph opens downward and you have a maximum

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Since the x^2 term is positive it opens upward... since it only crosses one time on the xaxis, it MUST be the minimum (4,0)
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