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arlik [135]
2 years ago
15

A city planner is rerouting traffic in order to work on a stretch of road. The equation of the path of the old route can be desc

ribed as y = two fifthsx − 4. What should the equation of the new route be if it is to be perpendicular to the old route and will go through point (P, Q)? y − Q = negative five halves(x − P) y − Q = two fifths(x − P) y − P = negative five halvesx − Q) y − P = two fifths(x − Q)
Mathematics
2 answers:
Alekssandra [29.7K]2 years ago
8 0

Answer:

<em>y - P = -5/2 (x - Q)</em>

Step-by-step explanation:

on flvs geometry module 4 test, this is correct!

nydimaria [60]2 years ago
3 0

The equation of the new route if it is to be perpendicular to the old route and will go through point (P, Q) is y - Q = -\frac{5}{2}(x - P)

Since the equation of the path of the old route can be described as y = two fifthsx − 4, it is y = \frac{2}{5}(x - 4)

Now the gradient of this old route is m = 2/5.

Since the new route is perpendicular to the old route, if we let its gradient be  m', then mm' = -1 (since the routes are perpendicular).

So, m' = -1/m

m' = -1/2/5

m' = -5/2

So, the gradient of the new route is m' = -5/2.

Since the new route passes through the point (P, Q), the equation of the new route passing through this point is given by

(y - Q)/(x - P) = m'.

\frac{y - Q}{x - P} = m'

This is the equation of the new route given in gradient form where m' is the gradient of the new route.

Since m' = -5/2,

\frac{y - Q}{x - P} = m'

\frac{y - Q}{x - P} = -\frac{5}{2}

y - Q = -\frac{5}{2}(x - P)

So, the equation of the new route if it is to be perpendicular to the old route and will go through point (P, Q) is y - Q = -\frac{5}{2}(x - P)

Learn more about equation of a path here:

brainly.com/question/12485587

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