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3 years ago

Write an equation of the line that passes through the points (-3,-9) and (5,-9)

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

8 0

Answer:

slope of a line m : 0

Equation of line : y=- 9

Step-by-step explanation:

P1 : (X1 , Y1 ) (-3 , -9)

P2 : (X2 , Y2) (5 , -9)

Slope of line (m) is caculated as ,

m = ( y2-y1)/(x2 - x1)

m = (-9 - (-9))/(5 - (-3))

m = 0

equation of line : y = mx+b

using P1 (-3 , -9)

= > (-9) = (0)(-3) + b

= > -9 = b

hence b = -9

equation of Line is

y = -9

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ryzh [129]

Answer:

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Step-by-step explanation:

Part 1) Find the perimeter of rectangle

we know that

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where

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W is the width of rectangle

we have

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Plot the figure to better understand the problem

using a graphing tool

see the attached figure

Remember that in a rectangle opposite sides are congruent and the measure of each interior angle is equal to 90 degrees

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the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance FG

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substitute the values

$d=\sqrt{(5-5)^{2}+(6+2)^{2}}$

$d=\sqrt{(0)^{2}+(8)^{2}}$

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step 2

Find the distance RF

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substitute the values

$d=\sqrt{(5-1)^{2}+(-2+2)^{2}}$

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we have

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substitute

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we know that

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