1. Which of the following is a quadratic function?
(1) y=3x – 2
(2) y=x²+2x²–1
(3) y=x² - 4
(4) y=6(2)*

Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.