What direct equation relates x and y if y varies directly with x and #y=30# when #x=3#?
1 Answer
Mar 27, 2018
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=30" when "x=3#
#y=kxrArrk=y/x=30/3=10#
#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=10x)color(white)(2/2)|)))#
