Given that y varies directly with x, and x = 5, y = -30, how do you write a direct variation equation that relates x and y?
1 Answer
Jun 19, 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,y=-30#
#y=kxrArrk=y/x=(-30)/5=-6#
#"the equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=-6x)color(white)(2/2)|)))#
