The slope Intercept form is :

\(Y = mx + b \)

where m is the slope of the line

b is the point of intersection with the Y axis .

for the point ( 6,8) and m = 1/2

\(8 = \frac{1}{2}*6 + b \)

\(8 = 3 + b \)

\(b = 8 - 3 \)

\(b = 5 \)

\(Y = \frac{1}{2}x + 5 \)

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