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katrin2010 [14]
3 years ago
15

Find the vertex of this parabola. y = -2x2 + 4x + 12

Mathematics
1 answer:
STatiana [176]3 years ago
3 0
For this case we have the following equation:
 y = -2x ^ 2 + 4x + 12

 Deriving we have:
 y = -2x ^ 2 + 4x + 12

y '= -4x + 4
 We match zero:
 -4x + 4 = 0

 We clear the value of x:
 4x = 4

x = 4/4

x = 1
 Then, we substitute the value of x in the equation of the parabola:
 y = -2 (1) ^ 2 + 4 (1) + 12

y = -2 + 4 + 12

y = 14
 Thus, the vertex of the parabola is the ordered pair:
 (x, y) = (1, 14)
 Answer:
 
The vertice is:
 
(x, y) = (1, 14)
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