3 years ago

Are the following lines parallel, perpendicular, or neither? -4x-5y=-4 and 10x-8y=-1

Mathematics

2 answers:

Vesnalui [34]3 years ago

8 0

Answer:

perpendicular

statuscvo [17]3 years ago

5 0

They are neither parallel nor perpendicular as they have different slopes.

First line equation in form of y = mx +c is:

y = (4x-4)/5

and second line equation is :

y= -((10x+1)/8)

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Identify the slope by converting standard form into slope-intercept form.<br> 12x - 9y = -9

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lilavasa [31]

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3 years ago

Read 2 more answers

Solve the system of equations below x-2y=3 <br><br> 2y-3y=9

Crank

First you solve 2y-3y=9.
$2y - 3y = 9 \\ subtract \: 2y \: and \: 3y \\ - y = 9 \\ divide \: by \: - 1 \\ y = - 9$
Now that you have y, then you substitute y into x-2y=3 to find X

$x - 2( - 9) = 3 \\ multiply \: - 9 \times - 2 \\ x + 18 = 3 \\ subtract \: 18 \: on \: both \: sides \\ x = - 15$
Your solution is (-15, -9)

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3 years ago