At what point does the graph of the parametric equations x=3-2t y=-2+5t intersect the graph of the parametric equations x=-1+3s y=5-9s? The answer is the point of intersection(x,y).

Question

1761 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-06-13T17:47:34

#(-7,23)#

#t = (3 - x)/2 => y_1 = -2 + 5 * (3 - x)/2#

#s = (x + 1)/3 => y_2 = 5 - 3(x + 1)#

#y_1 = y_2 =>#

#-2 + 5 * (3 - x)/2 = 5 - 3x - 3#

#-4 + 5(3 - x) = 4 - 6x#

#15 - 5x = 8 - 6x#

#x = 8 - 15 = -7#

#y_2 = 5 - 3(-6) = 5 + 18 = 23#