SOLUTION: If 3x+ky=7 and y=3-4x are two equations of two different lines find “k” if the lines are parallel with full steps. Thank you.

Algebra ->  Coordinate-system -> SOLUTION: If 3x+ky=7 and y=3-4x are two equations of two different lines find “k” if the lines are parallel with full steps. Thank you.      Log On


   

Question 1108761: If 3x+ky=7 and y=3-4x are two equations of two different lines find “k” if the lines are parallel with full steps.
Thank you.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Their slopes are equal if parallel.
3x%2Bky=7, slope is -3%2Fk.
y=3-4x, slope is -4.


-3%2Fk=-4
k%2F3=1%2F4
highlight_green%28k=3%2F4%29