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Type in abs(x) to find the absolute value of x
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Or you could have 6 and 1
6^2 - 1^2 → 36 - 1 → 35
Also, it's not true in general that if two polynomials in x both equal zero that they equal each other at the same value of x.
For example:
x + 1 = 0 and x - 1 = 0
You can't allow x + 1 = x - 1 or you'd have +1 = -1 !!!!
This illustrates that EighthMersennePrime's result is correct:
Slope intercept general form is y = mx + c, where m is slope and c is y-intercept.
Here we have:
-1 = m*0 + c, so that c = -1
and
-3 = m*2 -1 so that 2m = -2 so m = -1
y = -x - 1
Percentage is 100*23/109 → 21.10%
Percentage no shows given by 100*(98 - 31)/98 → 68.37%
"If z is a complex number satisfying z+(1/z)=1 calculate z^10+ (1/ z^10)"
Here's one way of doing it:
+33667 
