Draw the graph of each of the equations given below. Also, find the coordinates of the points where the graph cuts the coordinate axes:
Draw the graph of each of the equations given below. Also, find the coordinates of the points where the graph cuts the coordinate axes:
(i) 6x – 3y = 12
(ii) - x + 4y = 8
(iii) 2x + y = 6
(iv) 3x + 2y + 6 = 0
(i) We are given, 6x - 3y = 12
We get, y = (6x -12)/3
Now, substituting x = 0 in y = - (6x – 12)/3
we get y = - 4
Substituting x = 2 in y = (- 6x -12)/3, we get y = 0
Thus, we have the following table exhibiting the abscissa and ordinates of points on the line represented by the given equation
Co-ordinates of the points where graph cuts the co-ordinate axes are y = - 4 at y axis and x = 2 at x axis.
(ii) We are given, - x + 4y = 8
We get,
$y=\frac{8+x}{4}$
Now, substituting x = 0 in
$y=\frac{8+x}{4}$
we get y = 2
Substituting x = - 8 in
$y=\frac{8+x}{4}$
We get y = 0
Thus, we have the following table exhibiting the abscissa and ordinates of points on the line represented by the given equation
Co-ordinates of the points where graph cuts the co-ordinate axes are y = 2 at y axis and x = -8 at x axis.
(iii) We are given, 2x + y = 6
We get, y = 6 - 2x
Now, substituting x = 0 in y = 6 - 2x we get y = 6
Substituting x = 3 in y = 6 - 2x, we get y = 0
Thus, we have the following table exhibiting the abscissa and ordinates of points on the line represented by the given equation
Co-ordinates of the points where graph cuts the co-ordinate axes are y = 6 at y axis and x = 3 at x axis.
(iv) We are given, 3x + 2y + 6 = 0
We get,
$y=\frac{-(6+3 x)}{2}$
Now, substituting x = 0 in
$y=\frac{-(6+3 x)}{2}$
Substituting x = 2 in
$y=\frac{-(6+3 x)}{2}$
we get y = 0
Thus, we have the following table exhibiting the abscissa and ordinates of points on the line represented by the given equation
Co-ordinates of the points where graph cuts the co-ordinate axes are y = - 3 at y axis and x = - 2 at x axis.