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kotegsom [21]
3 years ago
13

What is the y-intercept of the line perpendicular to the line y = 3/4x + 3 that includes the point (-3, -3)

Mathematics
1 answer:
kipiarov [429]3 years ago
6 0
A perpendicular line has an opposite reciprocal slope. This means that the new line will have a slope of -4/3x. Plug in x and y into the equation y=Mx +b where m is the slope (-4/3):
-3=(-3/4)(-3) + b
and isolate b:
b-3=(-3/4)(-3)
b=(-3/4)(-3) +3
b=9/4+3
b=21/4

The final equation is y= -4/3x + 21/4
The y intercept is (21/4).
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