Answer:
Explanation:
Two lines are said to be parallel if their slopes are same.
Here we have two points given (1,7) and (-3,4 )
slope of a line when two points are given is solved by formula
![(y_2-y_1)/(x_2-x_1) \\where ( x_1,y_1) and (x_2,y_2) are the points through which it passes](https://img.qammunity.org/2019/formulas/mathematics/middle-school/t8v1xf11bvw4s94d52hba6ucnpg3ho91io.png)
therefore slope is
![(4-7)/(-3-1)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/fxahkgi316raqjx7pxo49amgbjvmh6dzw0.png)
=
![(3)/(4)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/eulje16nvg9cdod3mppp9iwzntxa82tvs3.png)
therefore all the lines which has slope
will be parallel to given line