Write a function that receives four parameters: x1, y1, x2, y2 which are all floating point values.
The function is called distance and returns (float) the distance between x1,y1 and x2,y2 on the cartesian coordinate plane.
What to Submit
Post on your blog your solution and include your code somehow (image, in the post or via GitHub) and remember to include the hashtag #quiz09
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