Combining Two Equations? - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Calculators (and very old HP Computers) ( /forum-3.html)+--- Forum: HP Prime ( /forum-5.html)+--- Thread: Combining Two Equations? ( /thread-17865.html) |

Combining Two Equations? - Solver - 12-29-2021 03:57 AM
Say that we have: x=1-2t and y=(t^2)+4 And we want to write this as y=etc. How would we do so? I mean, I could just rewrite the top equation to t=1/2-x/2 and then put that into the lower y equation so that it would be y=((1/2-x/2)^2)+4. (Which can be simplified further to (1/4x^2)-(1/2x)+17/4.) But I bought the HP Prime so that I could be lazy. Not do actual work. XD RE: Combining Two Equations? - Wes Loewer - 12-29-2021 06:13 AM
subst(y=t^2+4,t=solve(x=1-2*t,t)(1)) |