# Straight line Equations – The Easiest Method To Predict The Kind Of Solution!

Within the system of two straight line equations, you will find three options regarding the solution within the system. During this presentation, I’ll explore the three options individually.

- The equation obtain one unique solution:

The unit of two equations might have one unique solution. To begin with students have to know this can be of a single unique solution for the two straight line equations. One unique solution means, once we draw both straight line equations across the graph, we’ve two straight lines that could intersect in the point across the coordinate frame. The goal of intersection is known as the answer within the equations, which gives the requirement of both variables.

Both straight line equations might have one solution if their slopes will change. For instance consider we’ve the next system of straight line equations:

3x y = 2

-2x y = -9

To obtain the slope we must solve both equations for “y” as proven below:

First equation is altered to slope and y-intercept form as

y = – 3x 2

The coefficient of “x” that’s “- 3” may be the slope of line and constant term “2” is known as the y-intercept.

Similarly, second equation may be altered to slope and y-intercept form as proven below:

y = 2x – 9

Slope = 2 and y-intercept = – 9 using this line.

Now, slope of first lines are “- 3” which of second lines are “2”.

Therefore, both lines have different slopes and so obtain one unique solution. In other word there’s one unique number value for variable “x” but another number value for “y” or essentially, if wrinkles are attracted across the grid, both lines will intersect in the point.

- The equations don’t have any solution:

There’s another possibility, the equations can’t be solved and then we cannot discover the of variables, we all know of since the equations don’t have any solution.

The procedure to acknowledge this possibility is much like in situation one.

Slopes and y-intercepts of both line is acquired then when both lines have similar slopes but different y-intercepts, then other product solution.

No solution means, if both line is attracted across the grid they’ll be parallel to one another rather of intersect with one another.

- The straight line equation got infinite many solutions:

The Following possibility is the fact both equations got infinite many solutions. This can be truly the problem when both equations got same slopes and same y-intercepts. When the line is attracted across the coordinate grid, they’ll overlap one another and every point could be a solution for the system.

Hence, a technique for two straight line equations by 50 % variables might have above three options regarding solutions. The enter in the solution may be predicted without solving the equation by finding slopes and y-intercepts.