A few days ago
3nathn

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.

Top 1 Answers
A few days ago
Nima J

Favorite Answer

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

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