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43 votes
43 votes
Create an equation in slope-intercept form for the line that passes through (3, 6) and (6, 10).

User Brian Roach
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1 Answer

18 votes
18 votes

Answer: y = 4/3x + 2

Explanation:

Use the slope form of y2 - y1/ x2 - x1 and substitute in the values from the coordinates. In this case, it would be 10-6/6-3, which gives you 4/3. Thus, that would be the slope(m). Then take a pair of coordinates (x,y) and substitute in the equation y = mx + b.

If you take the first coordinate (3,6): 6 = 3(4/3) + b

6 = 4 + b

b = 2

If you take the second coordinate (6, 10) : 10 = 6(4/3) + b

10 = 8 + b

b = 2

Then, substitute m and b into the equation (y = mx + b) to get your answer.

User Octane
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