Mathematics
Find the equation of a line passing through the point (2, 3) and intersecting the line 2x – 3y = 6 on the y-axis.
Straight Line Eq
3 Likes
Answer
On the y-axis,
x = 0.
Substitute x = 0 into 2x − 3y = 6:
⇒ 2(0) − 3y = 6
⇒ −3y = 6
⇒ y = −2
So, the line 2x − 3y = 6 meets the y-axis at (0, -2).
Calculating slope for points (2, 3) and (0, -2).
By formula,
Slope =
m =
By two-point form :
Equation of a line :
y - y1 = m(x - x1)
Substituting values we get :
⇒ y - (-2) = (x - 0)
⇒ 2(y + 2) = 5x
⇒ 2y + 4 = 5x
⇒ 5x - 2y - 4 = 0
Hence, equation of line 5x - 2y = 4.
Answered By
1 Like
Related Questions
The vertices of a ΔABC are A(2, –11), B(2, 13) and C(–12, 1). Find the equations of its sides.
ABC is a triangle whose vertices are A(1, –1), B(0, 4) and C(–6, 4). D is the mid-point of BC. Find the :
(i) co-ordinates of D
(ii) equation of the median AD
Find the equation of a line with x-intercept = 5 and passing through the point (4, –3).
Find the equations of the diagonals of a rectangle whose sides are: x = –1, x = 4, y = –1 and y = 2.