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babymother [125]
3 years ago
12

Which is the distance between parallel lines with the equations 3x-5y=1 and 3x-5y=-3

Mathematics
1 answer:
jonny [76]3 years ago
8 0

Answer:

The distance between parallel lines is 0.6860\ units

Step-by-step explanation:

we have

3x-5y=1 -----> equation A

3x-5y=-3 -----> equation B

Line A and Line B are parallel lines, because their slopes are equal

Step 1

Find the slope of the given lines

isolate the variable y in the equation A

5y=3x-1

y=(3/5)x-1/5

The slope is m=(3/5)

Step 2

Find the slope of the perpendicular line to the given lines

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

so

m1*m2=-1

we have

m1=3/5 -----> given lines

substitute

(3/5)*m2=-1

m2=-5/3

Step 3

Find the equation of the perpendicular line that pass though the origin

 with the slope  m2=-5/3 and the point (0,0) Find the equation of the line

y-y1=m(x-x1)

y-0=(-5/3)(x-0)

y=-(5/3)x

Step 4

Using a graphing tool

Graph the two parallel lines and the perpendicular line

The intersection points are

A(-0.2647,0.4412) and B(0.0882,-0.1471)  

see the attached figure

we know that

the distance between the points A and B is the distance between parallel lines

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

substitute the values

d=\sqrt{(-0.1471-0.4412)^{2}+(0.0882+0.2647)^{2}}

d=\sqrt{(-0.5883)^{2}+(0.3529)^{2}}

d=0.6860\ units

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