Re: TI-86 Calculator capabilities
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Re: TI-86 Calculator capabilities
On Sat, 18 Oct 1997, Joseph Gaffney wrote:
> At 12:53 PM 10/18/97 -0400, Mike Gagne wrote:
> >Hello,
> >
> >
> >Q1.
> >When I graph 2 linear functions, each
> >having a slope that is the negative
> >reciprocal of the other, I end up with
> >2 lines that ARE NOT perpendicular to each
> >other...I tried adjusting the scale of the
> >x and y coordinates in the WINDOW screen
> >without success( wouldn't a 1 to 1 scale
> >between x & y work?). What's up???
>
> Just do the -x, not -1/x
>
**************************
y1=x
y2=-x
********************************
I did the above...and the resulting graphs aren't at right angles to each
other..!
Using the slope/intercept form of a linear equation:
1. y = mx + b
2. y = (-1/m)x + b
...the graph of equation-1 should be perpendicular to
the graph of equation-2 !!! My calculator's graphed lines aren't at right
angles to each other !!!
---Again, I say what's up !!!
-Thanks
--Mike Gagne
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