Y varies directly with x and y = 12 when x = 4, how do you write the direct variation equation?
1 Answer
Aug 25, 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=12" when "x=4#
#y=kxrArrk=y/x=12/4=3#
#rArr"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=3x)color(white)(2/2)|)))#
