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4. Use the
zeros( )
zeros of the first derivative of
the minimum value of
The maximum length of the pole is
Note:
the minimum value of
5. Compute the exact maximum length of
the pole.
(2 ±)
Enter:
c
6. Compute the approximate maximum
length of the pole.
Result: Approximately 20.8097 feet.
Use the auto-paste feature to copy
Note:
the result from step 4 to the entry line
inside the parentheses of c( ) and press
8 ¸.
Deriving the Quadratic Formula
Deriving the Quadratic Formula
Deriving the Quadratic Formula
Deriving the Quadratic Formula
This activity shows you how to derive the quadratic formula:
2
–
b
b
–
-------------------------------------- -
x =
2a
Activities
function to compute the
c(w)
.
c(w)
.
c(w)
4ac
to find
739
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