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3 years ago

What is the perimeter of this polygon?A(2, 3)B(-4, 0)C(0,-4)D(4,0)

Mathematics

2 answers:

Gnom [1K]3 years ago

7 0

Answer:

21.627

Step-by-step explanation:

get the distance between all points then add

vovangra [49]3 years ago

4 0

Answer:2,3 hope it help you

Step-by-step explanation:

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Write an equation for each linear function described. Show your work. The graph of the function passes through the point (2,1),

svp [43]

Step-by-step explanation:

The graph of the function passes through the point (2,1), and

y increases by 4 when x increases by 1.

x y

2 1

3 5

4 9

5 13

6 17

and so on

From the table:

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(2,\:1\right),\:\left(x_2,\:y_2\right)=\left(3,\:5\right)$

$m=\frac{5-1}{3-2}$

$m=4$

As the slope-intercept form of the line is

$y=mx+b$

putting m=4 and any point, let say (2, 1) to find y-intercept 'b'.

$1=\left(4\right)2+b$

$8+b=1$

$8+b-8=1-8$

$b=-7$

So putting $b=-7$ and $m=4$ in the slope-intercept form of the line

$y=\left(4\right)x+\left(-7\right)$

$y=4x-7$

Therefore, the equation for the linear function will be:

$y=4x-7$

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3 years ago

What is the perimeter of this polygon?A(2, 3)B(-4, 0)C(0,-4)D(4,0)​

What is the perimeter of this polygon?A(2, 3)B(-4, 0)C(0,-4)D(4,0)