Question 80530
Let's look at the first pair of points (-1,3) and (4,-2)


*[invoke calculating_slope -1, 3, 4, -2]

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Let's look at the second pair of points (2,-3) and (2,4)


*[invoke calculating_slope 2, -3, 2, 4]

So this equation is not in {{{y=mx+b}}} form

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