y = mx + b calculator is used to write the equation in the slope intercept form. We can write the slope intercept form of a straight as y = mx + b. Here, m is slope of the straight line, means steepness of the line and b is the y intercept of the line. The line meets the y axis at (0, b).
Example 1: Find the equation of a straight line of slope -and y intercept of the line is – 2.