You are asked for an Upper bound. This means place
the cursor to the right of the zero. Press the key
ENTER and obtain the following.
You are asked for a guess. Move the cursor near the zero
and press the key ENTER and obtain the following
(Screen 1.6 in the text).
The intersect Operation
Find where the functions y
1
= 3.84x + 300, 000 and
y
2
= 4.8x intersect.
Solution. Graph these two functions using a window
with dimensions [0, 400000] by [0, 2000000] and obtain
the following.
Now press the keys 2nd CALC 5 and obtain the
following.
The blinking cursor is on one of the curves and you are
asked for First curve. Press the key ENTER and you
obtain the following.
The blinking cursor is on the other curve and you are
asked for Second curve. Press the key ENTER and
you obtain the following.
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