find the slope between two points in php

To find the slope between two points in PHP, you can use the following formula:

slope = (y2 - y1) / (x2 - x1)

where (x1, y1) and (x2, y2) are the coordinates of the two points.

Here's the PHP code to implement the formula:

main.php
function getSlope($x1, $y1, $x2, $y2) {
    $slope = ($y2 - $y1) / ($x2 - $x1);
    return $slope;
}

// Example usage
$x1 = 2;
$y1 = 4;
$x2 = 5;
$y2 = 9;
$slope = getSlope($x1, $y1, $x2, $y2);
echo "The slope between ($x1, $y1) and ($x2, $y2) is: " . $slope;
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In this example, the function getSlope takes in four parameters: the x and y coordinates of the two points. It uses the formula to calculate the slope, and returns the result. Finally, we call the function with example values and print the output.