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telo118 [61]
3 years ago
15

Consider the quadratic function f(x) = 2x2 – 8x – 10. The x-component of the vertex is . The y-component of the vertex is . The

discriminant is b2 – 4ac = (–8)2 – (4)(2)(–10) =
Mathematics
2 answers:
mr_godi [17]3 years ago
8 0
F(x) = 2x² - 8x - 10.
This is a parabola open upward (since a>0) with an axis of symmetry = -b/2a:
a) axis of symmetry: x = -(-8)/(2*2) = 8/4 = 2. Then x = 2, which is the x component of the vertex
b) for x =  2, f(x) = f(2) = - 18 (component of y of the vertex)
c) VERTEX(2, - 18)
d) DISCRIMINENT: b² - 4.a.c = 64 - 4*2*(-10) = 144
12345 [234]3 years ago
4 0

Answer:

1.    2

2.   -18

3.    144

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