SOLUTION: whats the equation for a direct variation of a line that passes through (2,1)

Algebra ->  Systems-of-equations -> SOLUTION: whats the equation for a direct variation of a line that passes through (2,1)      Log On


   



Question 1085666: whats the equation for a direct variation of a line that passes through (2,1)
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

the equation for a direct variation of a line:
y=ax
if a line passes through (2,1), we have
1=a%2A2
1%2F2=a
and your equation is: y=%281%2F2%29x