A software designer is mapping the streets for a new racing game. All of the streets are depicted as either perpendicular or parallel lines. The equation of the lane passing through A and B is -7x + 3y = -21.5. What is the equation of the central street PQ?

-3x + 4y = 3

-1.5x − 3.5y = -31.5

2x + y = 20

-2.25x + y = -9.75

Question

A software designer is mapping the streets for a new racing game. All of the streets are depicted as either perpendicular or parallel lines. The equation of the lane passing through A and B is -7x + 3y = -21.5. What is the equation of the central street PQ?

-3x + 4y = 3

-1.5x − 3.5y = -31.5

2x + y = 20

-2.25x + y = -9.75

ehsan18 · Answer

is there any image of the problem?

anonymous · Answer

http://cdn.ple.platoweb.com/PCAP-ASSETS-PROD/f0b3f09c5d00479c93ae97bef0b735f0

ehsan18 · Answer

its pretty simple
we know when the slopes of two perpendicular lines are multiplied with each other they come out to be equal to -1
hence the slope of the line PQ is -3/7
also the co-ordinate of the Point P are given...use point-slope form to find the answer
point-slope form for a line with point(x',y') and slope m is given as
(y-y')=m(x-x')

anonymous · Answer

oh i get it thanks

ehsan18 · Answer

medal and fan plz