The variables x=5/2 and y=5/4 varies directly. How do you write an equation that relates the variables and find x when y=-5?
1 Answer
Sep 7, 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=5/2" and "y=5/4#
#y=kxrArrk=y/x=5/4xx2/5=1/2#
#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=x/2)color(white)(2/2)|)))#
#"when "y=-5#
#x=2xx-5=-10#
