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Question

Write an equation, in the slope intercept form of the line passing through the points (2,3) and (4,6)

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Solution

Since slope of line passing through two points (x1,y1) and (x2,y2) is m=y2y1x2x1
We now find the slope of the line passing through the points (2,3) and (4,6) as shown below:
m=6342=32
Therefore, the slope of the line is 32.
Now use the slope and point (2,3) to find the y-intercept.
y=mx+b3=(32×2)+b3=3+bb=33=0
Write the equation in slope intercept form as:
y=mx+b
y=32x+0y=32x
Hence, the equation of the line is y=32x..

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