how do u find slope-intercept form from a graph?

Question

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Answer 1

pick two points such as (x₁, y₁) and (x₂,y₂) and from this calculate the slope m = (difference in y values) ÷ (difference in x values).

 

now consult the graph & find where the line crosses the y-axis; this value is "b", the y-intercept.

 

now you can use your numbers m & b in the form y = mx + b.

 

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