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September 3, 2014

Homework Help: math

Posted by Ron on Sunday, October 2, 2011 at 2:39am.

a) What is the area of the tri-angle determined by the lines y= − 1/ 2x + 5,y =6x and they-axis?

(b) If b > 0 and m < 0, then the line y = mx +b cuts off a triangle from the first quadrant. Express the area of that tri-angle in terms ofm andb.

(c) The lines y = mx +5, y = x and the y-axis form a triangle in the first quadrant. Suppose this triangle has an area of 10 square units. Findm.

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