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oee [108]
3 years ago
5

Find the slope of the line.

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
8 0

The slope:

m=\dfrac{\Delta y}{\Delta x}

Look at the picture.

6 units down → -6

2 units right → 2

m=\dfrac{-6}{2}=-3

<h3>Answer: Slope = m = -3</h3>

storchak [24]3 years ago
6 0

<u>answer:</u>  \frac{3}{-1} x

<u>explanation:</u>

slope-intercept formula ==> y = mx + b

m is slope , and b is y-intercept


to find the slope you need to start at the y intercept and go 3 units up and 1 unit left. and if you repeat it again, until you reach the top of the graph and that would make partial of the line.

so, the slope is \frac{rise}{run}, so if you plug it in it would look like this

y = \frac{3}{-1} x + b


A D D I T I O N A L  I N F O

then you find the y-intercept which would be where the line intersects at the y axis, which is -10. plug the number into the equation

y = \frac{3}{-1} x - 10

and that would make our final answer.


hope this helps! correct me if there is anything wrong ❤ from peachimin

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xxTIMURxx [149]

The solution to given system of equations is (x, y) = (2, -1)

<em><u>Solution:</u></em>

Given system of equations are:

-1x + 2y = -4  -------- eqn 1

4x + 3y = 5 ------- eqn 2

We can solve the above system of equations by elimination method

<em><u>Multiply eqn 1 by 4</u></em>

4(-1x + 2y = -4)

-4x + 8y = -16  ------ eqn 3

<em><u>Add eqn 2 and eqn 3</u></em>

4x + 3y = 5

-4x + 8y = -16

( + ) --------------------

0x + 11y = -16 + 5

11y = -11

y = -1

<em><u>Substitute y = -1 in eqn 1</u></em>

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

-x -2 = -4

-x = -4 + 2

-x = -2

x = 2

<em><u>Check the answer:</u></em>

Substitute x = 2 and y = -1 in eqn 2

4x + 3y = 5

4(2) + 3(-1) = 5

8 - 3 = 5

5 = 5

Thus the obtained answer is correct

Thus the solution to given system of equations is (x, y) = (2, -1)

8 0
3 years ago
What is the value of x and y?
crimeas [40]

Answer:

C. x = 8 , y = 40

Step-by-step explanation:

since this is an Isosceles triangle 5x = 40° and x = 8

The sum of interior angles in a triangle is equal to 180°

40° + 5x + 2y + 20 = 180° add like terms

5x + 2y = 120

40 + 2y = 120 ➡ 2y = 80 and y = 40

8 0
4 years ago
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kolezko [41]

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Step-by-step explanation: The most important piece of clue has been given which  is the mean (average) for the observed data set, which is 7 days.

Note that the formula for the mean of a data set is derived as;

Mean = ∑x / f

Where ∑x is the summation of all observed data set and f is the number of data observed, that is 7. The formula now becomes;

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By cross multiplication, we now have,

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This means the addition of all temperature observed on the first 7 days is 42. The temperature on the eighth day is now given as 10 degrees, this means the summation of all observed data for the first eight days would become 42 + 10 which equals 52. Therefore when calculating the mean for the first eight days, ∑x is now 52. The formula for the first eight days therefore is derived as follows;

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is this how the question is really wrote out. it doesn't look like english

Step-by-step explanation:

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