The slopes of parallel line are alway equal
So, the slope of line whcih passes through (10, 7) and (-4,7) is equal to its parallel line
Expression for Slope
![\begin{gathered} \text{ Slope=}(y_2-y_1)/(x_2-x_1) \\ \text{ Slope=}(7-7)/(-4-10) \\ \text{ Slope =}(0)/(-14) \\ \text{ Slope = Not defined} \end{gathered}]()
Slope is not defined
So, the line which is parallel to given line's slope is not defined
Answer : not defines