sarahhans6711
05.12.2019 •
Mathematics
Asoftware 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?
a. -3x + 4y = 3
b.-1.5x − 3.5y = -31.5
c.2x + y = 20
d.-2.25x + y = -9.75
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Ответ:
Option B is correct .i.e., -1.5x - 3.5y = -31.5
Step-by-step explanation:
Given: All streets are either parallel or perpendicular.
Equation of Street AB , -7x + 3y = 21.5
To find Equation of Street PQ
Re write the given equation in form of slope and intercept form
we get,
From this slope of street AB is [tex\frac{7}{3}[/tex].
From given pic Street PQ is perpendicular to street AB.
we know that product of slope of perpendicular lines should be equal to -1
let slope of PQ = m
Slope of line in Option A).
Slope =
So, this is not required equation.
Slope of line in Option B).
Slope =
So, this is required equation.
Therefore, Option B is correct .i.e., -1.5x - 3.5y = -31.5
Ответ:
10v*3 =
30v
Step-by-step explanation:
That's the answer