关于高次多项式函数的图像问题
High-degreepolynomialfunction:
Ifn(thehighestexponent)isodd,andAn>0,thegraphfallstotheleftandrisestotheright.
Ifnisodd,andAn<0,thegraphrisestotheleftandfallstotheright.
Ifniseven,andAn>0,thegraphrisestotheleftandright
Ifniseven,andAn<0,thegraphfallstotheleftandright
An是最高次项的系数
这里该怎么理解?