Pre-calculus help? I don't understand these three questions :(?

Just a Girl

New member
I'm doing my pre-cal homework and these questions have me so confused :( can you show me how you get to the answers? thank you!

1.) For f(x) = 3x/(x^2 +2) what are the veritcal and horizontal asymptotes?
2.) Write the function f(x) = -2x2+ 8x- 5 in standard form and determine the direction and vertex of the parabola.
3.) Using the leading coefficient test, determine the eventual rise and fall of f(x) = -2x5+ x3- 7.
 
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