What is the distance between lines 3x − 5y + 3=0 and 6x − 10y − 12=0?

Let us rewrite the two lines in slope intercept form to obtain,

For the second equation too, we have,

The two slopes are equal. this means the two lines are parallel. We apply the formula for finding the distance between 2 parallel lines. This formula is given by

Where

and

We substitute into the formula to obtain,

Therefore the distance between the two lines is approximately 1.5 units.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18