The Tangent line calculator is a handy, no cost, virtually available tool that gives you the slope and the equation of the tangent line. A tangent is a line that touches a curve at any point (say in case of a circle it would be a line touching the circumference).

The point where the curve and the line meet is called the point of tangency. The slope-intercept formula for a line is given by the equation:

**y = mx + b**, where m is the slope of the line, b is its corresponding y-intercept.

The standard equation to find the equation of a tangent line is given by:

**y – y**_{1}** = m (x – x**_{1}**), **where (x_{1},_{ }y_{1}) are the line coordinate points and m is the slope of the line.

The procedure to use the tangent line calculator is as follows:

**Step 1:** Here, kindly enter the equation of the curve in the first input field and x value in the second input field.

**Step 2:** Next, click the button “Calculate” to get the output.**Step 3:** As a result, the slope value and the equation of the tangent line will be displayed in the new window.