3x-2y=13 2x+3y=-16 are these lines parallell or perpendicular or neither

1 answer:

6 0

3x - 2y = 13
-2y = -3x + 13
y = 3/2x - 13/2...slope is 3/2, y int is -13/2

2x + 3y = -16
3y = -2x - 16
y = -2/3x - 16/3...slope = -2/3, y int is -16/3

perpendicular lines will have negative reciprocal slopes. To find the negative reciprocal of a number, flip the number and change the sign.
On the 1st equation, the slope was 3/2....find its negative reciprocal.....flip it, making it 2/3....change the sign...making it -2/3. So the negative reciprocal of 3/2 is -2/3.

So if one equation has a slope of 3/2 and another equation has a slope of -2/3, then these lines are perpendicular <==

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hi can someone pls pls plsss! Help with this, I have a test and it’s due on Tuesday so I have time but for now can you pls help

shusha [124]

Answer:

16 units

Step-by-step explanation:

You would take the area of the door (which would be 8 times 3) and subtract the area of the poster (which is 4 times 2).

Next, you would set up your equation: 24-8 which is 16.

Hope this helps! :)

4 0

2 years ago

Time = 8 years