If y varies directly with x, and y = 0.8 when x = 0.5, how do you write the direct linear variation equation?
1 Answer
May 1, 2018
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"#
#y=0.8" when "x=0.5#
#y=kxrArrk=y/x=0.8/0.5=1.6#
#" equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=1.6x)color(white)(2/2)|)))#
