Question 527124
Point slope form is


y - y1 = m(x - x1)



where (x1, y1) is a point that lies on the graph and m is the slope



From y = mx+b, the slope will be given. It'll be up to you find a point that lies on the graph. The easiest point is the y-intercept, which is (0, b). So x1 = 0 and y1 = b


This means that 


y = mx+b 


converts to


y - b = m(x - 0)


where y1 = b 



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