Line m lies in the xy-plane. The y-intercept of line m is -4, and line m passes through the midpoint of the line segment whose endpoints are (2, 4) and (6, -8). What is the slope of line m ?
Choose the correct choice from the following choices.
A) -2	B) -1	C) -1/3	D) 0	E) Undefined
Ans: A   Solution: line m goes through midpoint of (2, 4) and (6, -8). midpoint is (4,-2)   as we can see that the y axis of intercept point is (0,-4) means line m is parallel to x axis   slope M= -2   -2ns: -2
<result>A</result>
Line m lies in the xy-plane. The y-intercept of line m is -4, and line m passes through the midpoint of the line segment whose endpoints are (2, 4) and (6, -8). What is the slope of line m ?