In the coordinate plane, points (x, 1) and (7, y) are on line k. If line k passes through the origin and has slope 1/7, then x - y =  Answers:
A) 6 B) 7 C) 5 D) 8 E) 3
Line k passes through the origin and has slope 1/7 means that its equation is y=1/7*x.   Thus: (x, 1)=(7, 1) and (7, y) = (7,1) --&gt; x-y=7-1= 
<gadget id="calculator">7-1</gadget>
<output>6</output>
6.   6nswer: 6
<result>A</result>
In the coordinate plane, points (x, 1) and (7, y) are on line k. If line k passes through the origin and has slope 1/7, then x - y =