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batmanmarie2004
10.04.2020 •
Mathematics
USING THE IMAGE BELOW HELP ME WITH QUESTION
ii)
and question b
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Ответ:
Options (2) and (6)
Step-by-step explanation:
Option (1).
The function f(x) has a maximum at x = -2.
False.
(It has minimum at x = 1)
Option (2)
The function f(x) has two real zeros.
True.
(Parabola is intersecting x-axis at the two different points)
Option (3)
The function is increasing in the interval (-2, ∞).
False.
[Function is decreasing in the interval (-2, 1) and increasing in the interval (1, ∞)]
Option (4)
There are two y-intercepts.
False.
(only one y-intercept, y = -1)
Option (5)
The vertex is (-2, 1)
False.
[Vertex is (1, -2)]
Option (6)
The range of the function is [-2, ∞)
True.
(y-values vary from y = -2 to y = ∞)