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barxatty [35]
3 years ago
7

Determine whether this pair of lines is parallel, perpendicular, or neither. 9+4x=9y 9x+4y=7 please answer now!!!

Mathematics
1 answer:
padilas [110]3 years ago
4 0

Answer:

The lines are perpendicular.

Step-by-step explanation:

One way to find out is to put both equations in the y intercept form:

y = mx + b

The first one:

9 + 4x = 9y

9y = 4x + 9

y = 4/9x + 9/4

So the slope is 4/9.

The second one:

9x + 4y = 7

4y = -9x + 7

y = -9/4x + 7/4

The slope is -9/4.

The slope of a perpendicular line is the negative reciprocal.

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