Find the equation of line passing through the mid-point of line joinin...
Mid Point [(3+5)/2, (4+6)/2]
= [8/2, 10/2]
= (4,5)
Perpendicular to the equation : 2x + 3y - 5 = 10
3x - 2y + k = 0
3(4) - 2(5) + k = 0
12 - 10 + k 0
k = -2
Therefore the equation is : 3x - 2y - 2 = 0
View all questions of this testFind the equation of line passing through the mid-point of line joinin...
Find the mid point as (4,5) then the equation of required line is 3(x-4)-2(y-5)=0>>>> 3x-2y-2=0
Find the equation of line passing through the mid-point of line joinin...
To find the equation of a line passing through the midpoint of the line joining (3, 4) and (5, 6), we first need to find the coordinates of the midpoint.
The midpoint formula is given by:
(x₁ + x₂)/2 , (y₁ + y₂)/2
Using the coordinates (x₁, y₁) = (3, 4) and (x₂, y₂) = (5, 6), we can substitute these values into the formula:
(x + 3)/2 , (y + 4)/2
Simplifying this expression, we get:
(x + 3)/2 , (y + 4)/2 = (x + 3)/2 , (y + 4)/2
Now we need to find the slope of the line perpendicular to the equation 2x - 3y = 5. The slope of this line can be found by rearranging the equation in slope-intercept form (y = mx + b), where m is the slope:
2x - 3y = 5
-3y = -2x + 5
y = (2/3)x - 5/3
The slope of this line is 2/3. The slope of any line perpendicular to this line will be the negative reciprocal of 2/3, which is -3/2.
Now that we have the slope (-3/2) and the coordinates of the midpoint (x + 3)/2 , (y + 4)/2, we can use the point-slope form of a line to find the equation. The point-slope form is given by:
y - y₁ = m(x - x₁)
Substituting the midpoint coordinates and the slope into this formula, we get:
y - (y + 4)/2 = (-3/2)(x - (x + 3)/2)
Simplifying this expression, we get:
2y - (y + 4) = -3(x - (x + 3)/2)
Multiplying through by 2 to eliminate the fraction, we get:
2(2y - (y + 4)) = -3(2x - (x + 3))
Expanding and simplifying, we get:
4y - 2y - 8 = -6x + 3
Combining like terms, we get:
2y - 8 = -6x + 3
Adding 6x to both sides, we get:
2y + 6x - 8 = 3
Adding 8 to both sides, we get:
2y + 6x = 11
Thus, the equation of the line passing through the midpoint of the line joining (3, 4) and (5, 6) and perpendicular to the equation 2x - 3y = 5 is 2y + 6x = 11.