SOLUTION: Find the value of x or y so that the line through the points has the given slope. (-3,-2) and (x,6);slope: -8/5 Please tell how you solved it.

Algebra ->  Linear-equations -> SOLUTION: Find the value of x or y so that the line through the points has the given slope. (-3,-2) and (x,6);slope: -8/5 Please tell how you solved it.      Log On


   

Question 1150014: Find the value of x or y so that the line through the points has the given slope.
(-3,-2) and (x,6);slope: -8/5
Please tell how you solved it.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Do it like the other one already solved.




Your example, %286-%28-2%29%29%2F%28x-%28-3%29%29=-8%2F5
%286%2B2%29%2F%28x%2B3%29=-8%2F5
%28x%2B3%29%2F%286%2B2%29=-5%2F8
x%2B3=-%285%2F8%29%2A8
x%2B3=-5
x=-5-3
highlight%28x=-8%29



More generally, Points (t,v) and (x,p), slope n/d;
Value for x is wanted;

%28p-v%29%2F%28x-t%29=n%2Fd

%28x-t%29%2F%28p-v%29=d%2Fn
x-t=%28d%2Fn%29%28p-v%29
x=t%2B%28d%2Fn%29%28p-v%29