The variables x=1 and y=1/2 varies directly. How do you write an equation that relates the variables and find y when x=8?
1 Answer
Sep 16, 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=1" and "y=1/2
y=kxrArrk=y/x=(1/2)/1=1/2
"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=1/2x)color(white)(2/2)|)))
"when "x=8
y=1/2xx8=4
