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 – y1 = m (x – x1), where (x1, y1) 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.