The variables x and y vary directly. When x = 12, y = 9. How do you write an equation that relates the variables?
1 Answer
Aug 26, 2017
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=9" when "x=12
y=kxrArrk=y/x=9/12=3/4
"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=(3x)/4)color(white)(2/2)|)))
