Parallel to the line 7x + 9y = 45; containing the point (9, 2)
I came up with 7x - 9y = 81 but Im not sure

Question

Parallel to the line 7x + 9y = 45; containing the point (9, 2)
I came up with 7x - 9y = 81 but Im not sure

anonymous · Answer

show your work

mathmale · Answer

Rick, if you have two parallel lines, their slopes are equal.  the coefficients of x and y, which are 7 and 9, will stay the same.  

Thus, take 7x + 9y = 45; delete the 45 and then substitute the coord. of the given point, (9,-2).  What do you get?

anonymous · Answer

Thanks that's all I needed to be sure of

mathmale · Answer

Hopefully, you got 45.  This question is a bit goofy because the "solution" is the given line itself.  Nothing changed!

mathmale · Answer

Excuse me!  Ricki, not Rick.