The ordered pairs (3,y) and (1/5,6) are the same direct variation, how do you find each missing value?
1 Answer
Sep 29, 2017
Explanation:
#"given "ypropx#
#"to convert to an equation multiply by k the constant of"#
#"variation"#
#rArry=kx#
#"to find k use the given coordinate point"#
#"that is "(1/5,6)tox=1/5,y=6#
#y=kxrArrk=y/x=6/(1/5)=6/1xx5/1=30#
#"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(y=30x)color(white)(2/2)|)))#
#"when x = 3"#
#y=30xx3=90#
#rArr(3,y)=(3,90)#
