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
