I think there is a site where you can learn and get the answers to, but I forgot what the site was called so please forgive me on that mistake and this site basically helps you on when you need to learn! And it’s fun and easy to use and your iq will grow higher the more you learn it from the site I hope this was helpful to you and sorry I forgotten what the site was called!
It takes 45 seconds. the easiest way to do these is to use a graphic calculator and replace the variables with x and y, for example, this equation would become -5x^2+30x, and if you don't have access to a graphing calculator, you can always use desmos online.
