A middle school took all of its 6th grade students on a field trip to see a play. The students filled 660 seats, which was 55% o
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Answer:
D) 5
Step-by-step explanation:
Perpendicular lines have opposite reciprocal slopes.
The line: has a slope of
as it is in y=mx+b form, where m is the slope, and b is the y-intercept.
Since the slope is , we see that the negative reciprocal slope is
, as
is the reciprocal (flip the numerator and denominator).
From here, we can use point slope form: , where
is the point. In this case, (3, 1) is the point.
Thus, we have: as our final equation.
Simplifying:
And: , which gives us the y-intercept to be 5.
Let me know if this helps!
