A few days ago
PreCal Help!!!!?
A right triangle is formed in the first quadrant by the x- and y-axes and a line. The line goes through the point (2,1). Write the area A of the triangle as a function of x, and determine the domain of the function.
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A few days ago
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3 point of this triangle is (0,0) (X0,0) (0,Y0).
the equation of line that connect (X0,0) to (0,Y0) is
y-1 = (x-2)/(2-X0)
for (0,Y0) we have Y0 =1- 2/(2-X0)
the area of this triangle is (X0 * Y0)/2
0
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