"Solving" for x

WARM UP
Welcome to Unit 4![br][br][br]Warm up;[br][b]Find the slope of 10, 56 and 748, 57. You may use a graph. The graph is provided below.[/b]
[b]Find the slope of 10, 56 and 748, 57?[/b]
Optional Graph
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– Arpit Kesharwani

Information: "Solving" for x