Assume y varies inversely as x, how do you write the equation given y=2 when x=20?
1 Answer
Jun 4, 2018
Explanation:
#"the initial statement is "yprop1/x#
#"to convert to an equation multiply by k the constant"#
#"of variation"#
#y=kxx1/x=k/x#
#"to find k use the given condition"#
#y=2" when "x=20#
#y=k/xrArrk=yx=2xx20=40#
#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=40/x)color(white)(2/2)|)))#
