## Enter point and line information:

<-- Line 1
<-- Line 2

What is the slope (gradient) of

y=2x+9and3x=4x+12

##### Standard Equation

Since this equation is in standard y = mx + b format, our line equation is:

y = + 4x + 12

Slope = 4

Slope = 4
##### How does the 2 Lines Intersection Calculator work?
Free 2 Lines Intersection Calculator - Enter any 2 line equations, and the calculator will determine the following:
* Are the lines parallel?
* Are the lines perpendicular
* Do the lines intersect at some point, and if so, which point?
* Is the system of equations dependent, independent, or inconsistent
This calculator has 2 inputs.

### What 3 formulas are used for the 2 Lines Intersection Calculator?

Lines are parallel when they have the same slope.
Lines are perpendicular when they have slopes which are negative reciprocals.
For a line y = mx + b, m is the slope

For more math formulas, check out our Formula Dossier

### What 6 concepts are covered in the 2 Lines Intersection Calculator?

2 lines intersection
intersect
line equation
parallel
perpendicular
two lines which intersect to form a right angle
slope
Change in y over change in x