運算式 7: "m" equals left parenthesis, StartFraction, "f" left parenthesis, "b" , right parenthesis minus "f" left parenthesis, "a" , right parenthesis Over "b" minus "a" , EndFraction , right parenthesism=fb−fab−a
equals=
0.40.4
7
What happens if you set "b = a"?
8
This is why we need to take the limit as b approaches a. Otherwise, we would get a slope of 0/0.
9
Visuals (Don't mess with this.)
對學生隱藏此資料夾。
10
15
技術支援
技術支援
left parenthesis, 2 , negative 2.2 , right parenthesis2,−2.2
left parenthesis, 8 , 0.2 , right parenthesis8,0.2
