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jonny [76]
3 years ago
12

Linear equation for passing through (-3,5) & perpendicular to y=-1/2x -3

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
5 0
The perpendicular slope is the negative reciprocal of the slope of the line it is perpendicular to. Therefore, the slope would be the negative reciprocal of -1/2 which would be 2.

From there, you plug in the coordinate into x and y and solve for b;

5 = 2 * -3 + b

5 = -6 + b

b = 11

Therefore the equation is;

y = 2x + 11
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Murrr4er [49]
Formula for Perimeter of Rectangle:

P = 2(L + W)

Plug in 160:

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So we can plug in '4W' for 'L' in the first equation.
<span>160 = 2(L + W)

160 = 2(4W + W)

Combine like terms:

160 = 2(5W)

160 = 10W

Divide 10 to both sides:

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Now we can plug this back into any of the two equations to find the length.

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So the width is 16, and the length is 64.</span>
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Step-by-step explanation:

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