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polet [3.4K]
4 years ago
12

What is the value of the function at x = 2? Enter your answer in the box.

Mathematics
2 answers:
Lorico [155]4 years ago
8 0

Answer:

-3

Step-by-step explanation:

We are given that a  graph.

We have to find the value of the function at x=2.

To find the value of function at x=2 we will find the value of y corresponding to x=2 by drawing  a vertical line x=2

The given graph is the graph of a  line.

We can see that when we draw a vertical line x=2 and parallel to y- axis.

Then, the vertical  line x=2 cut the given line at pint (2,-3).

Therefore, the intersection point of line x=2 and the given line is (2,-3).

The value of y corresponding to x=2 is -3.

We know that y=f(x)

f(2)=-3

Therefore, the value of the given function at x=2 is -3.

Hence, the value of the function at x=2 is -3.

natima [27]4 years ago
3 0

Answer:

y = - 3

Step-by-step explanation:

Locate x = 2 on the x- axis, then go down vertically until the line is met.

Then read the corresponding y- coordinate at this point.

When x = 2 the value of the function is y = - 3

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Mr Thompson, Please help!
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Problem 1

<h3>Answer: Choice C) x^2-4 </h3>

Explanation:

Use the difference of squares rule here.

That rule says (a-b)(a+b) = a^2-b^2

In this case, a = x and b = 2.

===========================================================

Problem 2

<h3>Answer: Choice B) 2x^2+7x+5</h3>

Work Shown:

(2x+5)(x+1)

y(x+1) ..... let y = 2x+5

xy+y

x(y) + 1(y)

x(2x+5) + 1(2x+5) ... plug in y = 2x+5

2x^2+5x+2x+5

2x^2+7x+5

===========================================================

Problem 3

<h3>Answer: Choice A)  -x^2-5x+7</h3>

Explanation:

The standard form of a quadratic is ax^2+bx+c, where a,b,c are real numbers. In the case of choice A, we have a = -1, b = -5, c = 7.

===========================================================

Problem 4

<h3>Answer: Choice D</h3>

Explanation:

Along the top we have three green rectangles. If each of them are of length x, then we have x+x+x = 3x so far. Then adding on a yellow piece of 1 unit leads to 3x+1 as the total horizontal width across the top.

Similarly, along the left side we have 1 green portion and 2 yellow leading to x+2. So this shows why this diagram represents (3x+1)(x+2)

A rectangle must be formed with the smaller pieces glued together. We cannot have any gaps or overlaps. The reason we're aiming for a rectangle is because the area of a rectangle is length*width. Think of (3x+1) as the length and (x+2) as the width.

8 0
3 years ago
a spinner has spaces labeled X, Y, and Z. the spinner was spun 20 times. The results are shown in the table below. According to
lina2011 [118]
I think it’s 3 out of 20 or 3/20 hope I could help you
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3 years ago
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Vinvika [58]
The correlation coefficient (r) of the height and weight is 0.40391008.
Rounded, It will be 0.4
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3 years ago
Helppp pleasee!! If you can answer ASAP I would really appreciate it thank youuu.
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Answer:

1. 4/7 = 16/28

Check:

(4/7)(4/4) = 16/28 = 16/28

2. 40/15 = 8/3

Check:

(40/15)/(5/5) = 8/3

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Check:

(15/6)/(3/3) = 5/2

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Check:

(8/11)(7/7) = 56/77

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Check:

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3 years ago
What is 5/9 divided by 7/9
N76 [4]

Answer:

5/7

Step-by-step explanation

When dividing a fraction by a fraction it is the same as multiply the inverse of the bottom fraction, so 5/9 times 9/7 so the 9's cancel and your left with 5/7

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4 years ago
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