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Oliga [24]
3 years ago
5

I need help please?!!!!

Mathematics
2 answers:
Naya [18.7K]3 years ago
8 0

Answer:

What you put is correct

Step-by-step explanation:

Because it is -3 and its pointing to the right so the arrow would be like that.

lana [24]3 years ago
6 0
It’s x > -3, so what you put is correct.

an open circle means no equal to (line under the symbol)

and since it’s pointing to the right it means greater than.

put them together and get:
x>-3
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Answer:

True: B, C and D

Step-by-step explanation:

The graph of the function is shown in the attached diagram.

The vertex of the parabola (parabola is the graph of the function f(x)) is at (-3,-16), because

x_v=\dfrac{1+(-7)}{2}=-3\\ \\y_v=f(-3)=(-3-1)(-3+7)=-4\cdot 4=-16

So, option A is false and option B is true.

As you can see from the graph, the function is increasing for all x>-3, thus option C is true.

The graph is positive for x<-7 and x>1 and negative for -7<x<1, so option D is true and option E is false.

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