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Write linear function equation, when we have a slope and one point


Write linear function equation, if m = 0.5 and point with coordinates (3,12) belongs to this function. How solve this task?

Last time edited 2017-11-23

0

General equation of the straight line is [tex]y=mx+c[/tex]. If [tex]m = 0.5[/tex], then we have [tex]y=0.5x+c[/tex]. Now we can easy find c by inserting given point coordinates to our equation. $$12=0.5 \cdot 3 + c, \ \ c=10.5$$ Answer: [tex]y=0.5x+10.5[/tex]

Last time edited 2019-01-18

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