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anonymous
 4 years ago
Identify the vertex, axis of symmetry, and min/max value of each.
f(x) = 2x^2  36x 164
f(x) = 7x^2 + 14x  15
f(x) = 6x^2 + 12x  4
f(x) = 10x^2  100x +240
anonymous
 4 years ago
Identify the vertex, axis of symmetry, and min/max value of each. f(x) = 2x^2  36x 164 f(x) = 7x^2 + 14x  15 f(x) = 6x^2 + 12x  4 f(x) = 10x^2  100x +240

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0each of these works the same way. find \[\frac{b}{2a}\] and that will be the first coordinate of the vertex. second is what you get by substitution

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[f(x) = 2x^2  36x 164 \] \[\frac{b}{2a}=\frac{36}{4}=9\] \[f(9)=2\] range is \[(\infty, 2]\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[f(x) = 7x^2 + 14x  15\] \[\frac{b}{2a}=\frac{14}{2\times 7}=1\] \[f(1)=8\] vertex is \[(1,8)\] range is \[(\infty, 8]\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0What do you mean by 'range'?
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