marypoppin1490 marypoppin1490 04-05-2024 Mathematics Answered Find all values of x at which the graph ofy = x²-4cox changes concavity on (-/2,/2).1. x = -(/3)2. x = (/6)3. x = -(/6), (/6)4. x = (/3)5. there are no values of x6. x = -(/3), (/3)7. x = -(/6)