because if there is no number for x, you have to think to yourself, there is only 1 x and that would make it the 1.
When a straight line equation is parallel to another equation the slope remains the same but the y intercept changes
A linear equation is the equation of a line and that consists of an infnite number of points. What you have, in x = -4 and y = -1/3, is a single point. A single point is not a line and so there cannot be a linear equation (suitable for a line) to represent a point.
Slope: -2 Intercept: 5
-1
It is a linear equation in two variables, x and y. Any point on the line defined by the equation will satisfy the equation and conversely, any ordered pair that satisfies the equation will represent a point, in the Cartesian plane, will be on the line.
5
When a straight line equation is parallel to another equation the slope remains the same but the y intercept changes
(5, -8)
A linear equation is the equation of a line and that consists of an infnite number of points. What you have, in x = -4 and y = -1/3, is a single point. A single point is not a line and so there cannot be a linear equation (suitable for a line) to represent a point.
(2, 11)
Slope: -2 Intercept: 5
-1
It is a linear equation in two variables, x and y. Any point on the line defined by the equation will satisfy the equation and conversely, any ordered pair that satisfies the equation will represent a point, in the Cartesian plane, will be on the line.
X equals 0.5at squared is a quadratic equation. It describes a parabola. Y equals mx plus b is a linear equation. It describes a line. You cannot describe a parabola with a linear equation.
-3
-11
Slope = -2 Y intercept = 5 =p