If y varies directly as x, how do you find the direct variation equation for the situation. y = 0.5 when x = 2?

1 Answer
Aug 22, 2017

y=0.25x

Explanation:

"the initial statement is " ypropx

"to convert to an equation multiply by k the constant of"
"variation"

rArry=kx

"to find k use the given condition"

y=0.5" when "x=2

y=kxrArrk=y/x=0.5/2=0.25

"the equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=0.25x)color(white)(2/2)|)))