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kayser
Group Title
what domain restriction should be used for
the function f(x) = x2  6x + 9 so that it will have an inverse function?
 2 years ago
 2 years ago
kayser Group Title
what domain restriction should be used for the function f(x) = x2  6x + 9 so that it will have an inverse function?
 2 years ago
 2 years ago

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BlingBlong Group TitleBest ResponseYou've already chosen the best response.1
Find the vortex of the equation as you can tell it is a parabola, then restrict the domain so it can pass the horizontal line test The horizontal line test dictates that a line drawn across a graph should not intersect the line more than once. For a function to have an inverse it must pass this test
 2 years ago

across Group TitleBest ResponseYou've already chosen the best response.4
\[f(x)=x^26x+9=(x3)^2.\]Obviously, \(f:[3,\infty)\to\mathbb{R}\) or \(f:(\infty,3]\to\mathbb{R}\).
 2 years ago

kayser Group TitleBest ResponseYou've already chosen the best response.1
oh great, thank you
 2 years ago

BlingBlong Group TitleBest ResponseYou've already chosen the best response.1
Hint the x coordinated for the vertex can be found by inputting a = 1 b = 6 into the equation (b/a(2)) = x coordinate
 2 years ago

wasiqss Group TitleBest ResponseYou've already chosen the best response.0
sussane can u cum to twiddla now plz plz
 2 years ago
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