find the slope between two points in ruby

main.rb
slope = (y2 - y1) / (x2 - x1)
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main.rb
x1 = 2
y1 = 5
x2 = 5
y2 = 10

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

puts "The slope between (#{x1}, #{y1}) and (#{x2}, #{y2}) is #{slope}."
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main.rb
The slope between (2, 5) and (5, 10) is 1.6666666666666667.
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