Lua help

function should make the text object green while changing the the message and making the rectangle shrink to half size. Currently, neither of these changes is being made, correct it

function change () mytext.Text = "Now I am green!" mytext:FillColor( 1, 0, 0 ) myRectangle.Scale=1/2 end myText=display.newText("I am the original text", 200, 300, Arial , 30 ) myrectangle=display.newRect(150,200,60,150)