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)|)))#
