Find equation of a straight line from two points : How to use it?
The equation straight line calculator allows to calculate the equation of a straight line from the coordinates of two points with step by step calculation.
Syntax :
equation_straight_line(point1;point2)
Examples :
equation_straight_line(`[3;1];[2;5]`) returns [y=13-4*x]
Find the equation of a straight line from two points
In the plan, there is one and only one straight line through two points. In a system (O,`vec(i)`,`vec(j)`) of the plan, it is possible from the coordinates of two points to find the equation of a line from the coordinates of two points to find the equation of a line.
The calculator allows to find the equation of a straight line (of the form y=ax+b) from the coordinates of two points by specifying the calculation steps.
This calculator is able to determine the equation of a straight line through two points with different abscissa, but also the equation of a straight line through two points with the same abscissa.
Equation of a straight line from two points of different abscissa
This example shows how to calculate the equation of the line that passes through the points of coordinates A[3;0] and B[2;5] , after calculation the result `[y=15-5*x]` is returned.
Equation of a line from two points with the same abscissa
For example, to calculate the equation of the straight line through the points A[3;2] et B[3;3] enter equation_straight_line(`[3;2];[3;4]`), after calculation the result `[x=3]` is returned.
Graph a straight line from two points
In some cases the calculator after determining the equation of the straight line from two points will propose to draw straight line associated with this equation. For that, when it is possible, it is enough to click on the link which appears in the area of detail calculations.
- Solving quadratic equation with complex number : complexe_solve. The complex number equation calculator returns the complex values for which the quadratic equation is zero.
- Calculation of the discriminant online : discriminant. Calculator that allows the calculation of the discriminant of a quadratic equation online.
- Find equation of a straight line from two points : equation_straight_line. The equation straight line calculator allows to calculate the equation of a straight line from the coordinates of two points with step by step calculation.
- Find the equation of tangent line : equation_tangent_line. The tangent line equation calculator is used to calculate the equation of tangent line to a curve at a given abscissa point with stages calculation.
- Pythagorean theorem calculator : pythagorean. The calculator uses the Pythagorean theorem to verify that a triangle is right-angled or to find the length of one side of a right-angled triangle.
- Solve for x calculator : equation_solver. The equation solver allows to solve equations with an unknown with calculation steps : linear equation, quadratic equation, logarithmic equation, differential equation.
- Inequality calculator : inequality_solver. Inequality solver that solves an inequality with the details of the calculation: linear inequality, quadratic inequality.
- Solve system of linear equations : solve_equations. The solver of systems of linear equations allows to solve equations with several unknowns: system of equations with 2 unknowns, system of equations with 3 unknowns, system with n unknowns.
- Countdown solver : arithmetic_solver. This countdown solver allows finding a target number from a set of integer in using arithmetic operations.