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kap26 [50]
3 years ago
10

Which point lies on the line described by the equation below? y + 3 = 2(x - 1)

Mathematics
2 answers:
Anna71 [15]3 years ago
4 0
As you can see, the only point that lies on the line y+3=(2(x-1) is A. (1,-3)

Rina8888 [55]3 years ago
4 0

Answer:

Option A is correct that is ( 1 , -3 )

Step-by-step explanation:

Given Equation:

y + 3 = 2(x - 1)

To find: point which lies on line of given equation from given points

A). ( 1 , -3 )

x = 1  , y = -3

LHS = y + 3 = -3 + 3 = 0

RHS = 2(x - 1) = 2(1 - 1) = 0

LHS = RHS

Therefore, This Point lie on the line.

B). ( 0 , 0 )

x = 0  , y = 0

LHS = y + 3 = 0 + 3 = 3

RHS = 2(x - 1) = 2(0 - 1) = -2

LHS ≠ RHS

Therefore, This Point doesn't not lie on the line.

C). ( 2 , 1 )

x = 2  , y = 1

LHS = y + 3 = 1 + 3 = 4

RHS = 2(x - 1) = 2(2 - 1) = 2

LHS ≠ RHS

Therefore, This Point doesn't not lie on the line.

D). ( 2 , 9 )

x = 2  , y = 9

LHS = y + 3 = 9 + 3 = 12

RHS = 2(x - 1) = 2(2 - 1) = 2

LHS ≠ RHS

Therefore, This Point doesn't not lie on the line.

E). ( 1 , -4 )

x = 1  , y = -4

LHS = y + 3 = -4 + 3 = -1

RHS = 2(x - 1) = 2(1 - 1) = 0

LHS ≠ RHS

Therefore, This Point doesn't not lie on the line.

F). ( -1 , -6 )

x = -1  , y = -6

LHS = y + 3 = -6 + 3 = -3

RHS = 2(x - 1) = 2(-1 - 1) = -4

LHS ≠ RHS

Therefore, This Point doesn't not lie on the line.

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Answer:

1. The shape of the histogram created with MS Excel is approximately bell shaped and approximately evenly spread about the central (largest counts) values

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3. Part A

The 15 numbers between 1  and 20 generated by a random generator are;

1, 8, 8, 15, 4, 18, 11, 6, 17, 1, 18, 15, 10, 12, 11

The measure of center is the mean =  (1+8+8+15+4+18+11+6+17+1+18+15+10+12+11)/15 = 155/15 = 31/3

The measure of spread used is the variance, s² = 32.38

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{\sum \left (x_i-\bar x  \right )^{2} } = 453.333

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Part B

The measure of central tendency are the mean and the median because the size of the data (n = 15), is 75% of the population (N = 20) nd therefore the data is approximately normal and can be represented by the mean and the standard deviation

Step-by-step explanation:

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3 years ago
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Answer:

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3 years ago
The graph of a line is shown below. What is the equation of the line, in slope-intercept form, that is parallel to this line and
Alex_Xolod [135]

Earlier in this chapter we have expressed linear equations using the standard form Ax + By = C. Now we're going to show another way of expressing linear equations by using the slope-intercept form y = mx + b.

In the slope-intercept form you use the slope of the line and the y-intercept to express the linear function.

<span><span>y=mx+b</span><span>y=mx+b</span></span>

Where m is the slope and b is the y-intercept.

Example

Graph the equation

<span><span>y−2x=1</span><span>y−2x=1</span></span>

rewrite in slope-intercept form

<span><span>y=2x+1</span><span>y=2x+1</span></span>

Identify the slope and the y-intercept

m = 2 and b = 1

Plot the point corresponding to the y-intercept, (0,1)

The m-value, the slope, tells us that for each step to the right on the x-axis we move 2 steps upwards on the y-axis (since m = 2)

And once you have your second point you can just draw a line through the two points and extend it in both directions.

You can check to see that the line you've drawn is the correct one by substituting the coordinates of the second point into the original equation. If the equation holds true than the second point is correct.

Our second point = (1, 3)

<span><span>y−2x=1</span><span>y−2x=1</span></span>

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Our second point is a solution to the equation i.e. the line we drew is correct.

A line that passes through the origin has a y-intersect of zero, b = 0, and represents a direct variation.

<span><span>y=mx</span><span>y=mx</span></span>

In a direct variation the nonzero number m is called the constant of variation.

You can name a function, f by using the function notion

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f(x) is another name for y and is read as "the value of f at x" or "f of x". You can use other letters than f to name functions.

A group of functions that have similar characteristics are called a family of functions. All functions that can be written on the form f(x) = mx + b belong to the family of linear functions.

The most basic function in a family of functions is called the parent function. The parent function of all linear functions is

<span><span>f<span>(x)</span>=x</span></span>

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3 years ago
Please help thnk you.
Levart [38]
Hello!

You have to find what they multiplied to 18 to get 27

27 / 18 = 1.5

The multiplied the sides by 1.5 to get the second shape

6 * 1.5 = 9

The answer is C)9

Hope this helps!
7 0
3 years ago
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Eddi Din [679]

Answer:

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Step-by-step explanation:

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