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exis [7]
3 years ago
10

What does f(-1) =_ and x=_ ?

Mathematics
1 answer:
lubasha [3.4K]3 years ago
5 0

Answer:

F(-1) = 1

x = 3

Step-by-step explanation:

1) Assume that f(-1) = y1

So that point A (x1 = -1; y1) is a point lying in the graph representing the equation y = f(x)

As it can be seen in the figure, the graph representing that equation crosses point (-1; 1)

=> Point A has y1 = 1

=> f (-1) =1

2) Assume that f(x2) = -2

So that point B (x2; y2 = -2) is a point on the graphy representing the equation y = f(x)

As indicated in the figure, the graph crosses point (3; -2)

=> Point B has x2 = 3

=> When f(x) = -2, x = 3

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Which expression has the greatest value when x=3?
FrozenT [24]

Answer:

3) (2x)^{3}

Step-by-step explanation:

x = 3

1) 2x^{3}

2 x 3^{3}

= 54

2) 2x^{3} + 5

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= 59

3) (2x)^{3}

(2 x 3)^{3}

6^{3}

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6 0
3 years ago
What is the vertex of y = x2 + 2x +2<br> O (1,-1)<br> O (2,-2)<br> O (1, 2)<br> 0 (-1, 1)
fredd [130]

Answer:

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Step-by-step explanation:

Given a parabola in standard form

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substitute x = - 1 into the equation for y- coordinate of vertex

y = (- 1)² + 2(- 1) + 2 = 1 - 2 + 2 = 1

vertex = (- 1, 1 )

8 0
3 years ago
Company A has 400 employees and Company B has 500 employees. Among these employees, there are 50 married couples, each consistin
abruzzese [7]

Answer:0,0025

Step-by-step explanation:

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Now you can substitute the respective probabilities .

= (50/400) x (1/500)

= 0,0025

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Answer:

5/6.  I think that is the answer.

Step-by-step explanation:

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4 years ago
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