The variables x=0.8 and y=1.6 varies directly. How do you write an equation that relates the variables and find y when x=8?
1 Answer
Dec 12, 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"#
#x=0.8" and "y=1.6#
#y=kxrArrk=y/x=1.6/0.8=2#
#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=2x)color(white)(2/2)|)))#
#"when "x=8#
#y=2xx8=16#
