In x-y plane, there is a right triangle ABC (∠B=90o). If the length of AC is 100 and the slope of line segment AC is 4/3, what is the length of AB? Pick:	A) 12	B) 18	C) 24	D) 28	E) 80
Slope = Change in Vertical Direction/Change in Horizontal Direction = 4/3   Change in Vertical Direction = 4x = AB   Change in Horizontal Direction = 3x = BC   AB^2 + BC^2 = 100^2   16x^2 + 9x^2 = 10000   25x^2 = 400   x^2 = 400   x = 20   Therefore AB = 20*4= 
<gadget id="calculator">20*4</gadget>
<output>80</output>
80   Answer: 80
<result>E</result>
In x-y plane, there is a right triangle ABC (∠B=90o). If the length of AC is 100 and the slope of line segment AC is 4/3, what is the length of AB?