graph and secant line 2 | Desmos

Hidden (a, f(a)) left parenthesis, "a" , "f" left parenthesis, "a" , right parenthesis , right parenthesis

Label:

4

Hidden (b, f(b)) left parenthesis, "b" , "f" left parenthesis, "b" , right parenthesis , right parenthesis

Label:

5

Expression 6: "y" equals "f" left parenthesis, "a" , right parenthesis positive StartFraction, "f" left parenthesis, "b" , right parenthesis minus "f" left parenthesis, "a" , right parenthesis Over "b" minus "a" , EndFraction left parenthesis, "x" minus "a" , right parenthesis left brace, "a" less than or equal to "x" less than or equal to "b" , right brace

6

Expression 7: "y" equals "f" left parenthesis, "a" , right parenthesis positive StartFraction, "f" left parenthesis, "b" , right parenthesis minus "f" left parenthesis, "a" , right parenthesis Over "b" minus "a" , EndFraction left parenthesis, "x" minus "a" , right parenthesis left brace, "b" less than or equal to "x" less than or equal to "a" , right brace

7

8

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