f(x)=ax-12,g(x)=2x+6,兩函數圖形交點在x軸上,
a=_________
f(x)是一次函數,且 f(-3)=0,f(1)<0
f(-5)____0,f(2)_____0
填>,=,<
收錄日期: 2021-04-15 15:45:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140615000016KK07343