i think D hope it helps
Step-by-step explanation:
1 7/8 the least because it farther from the line than 0

So, Both lines are perpendicular
Step-by-step explanation:
We need to identify if lines:
Line 1: (8,12)(7,-5)
Line 2: (-9,3)(8,2)
are parallel, perpendicular, or neither?
- Lines are parallel if they have same slopes i.e slope 1= slope2
- Lines are perpendicular if their slopes are negative inverses of each other i.e slope 1= -1/slope 2
The formula used to find slope is:

Finding Slope of Line 1:
The points are: Line 1: (8,12)(7,-5)

Putting values in the formula:





So, Slope of line 1 is 17
Finding Slope of Line 2:
The points are: Line 2: (-9,3)(8,2)

Putting values in the formula:




So, Slope of line 2 is 
Since 
So, Both lines are perpendicular
Keywords: Slope of Lines
Learn more about Slope of lines at:
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The answer should be the first one, 2. Do you need and explanation?
4x+y/2y-x
Start by replacing all of the variables.
4(2)+4/2(4)-2
Now work multiply.
8+4/8-2
Now add.
12/6
That is your fraction. But you must simplify it.
Its simplifies to 2.
376 because 276 + 100 is 376