Which equation is the quadratic variation equation for the relationship? y varies directly with x^2 and y=72 when x=6

1 Answer
Feb 8, 2018

#y=2x^2#

Explanation:

#"the initial statement is "ypropx^2#

#"to convert to an equation multiply by k the constant"#
#"of variation"#

#rArry=kx^2#

#"to find k use the given condition"#

#y=72" when "x=6#

#y=kx^2rArrk=y/x^2=72/36=2#

#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=2x^2)color(white)(2/2)|)))#