Solve the following systems of 3-variable linear equations.
1 answer:
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The point slope form has the following syntax.
m = slope = -5
(x,y) = (2,-8)
<------Answer
m = slope = -5
(x,y) = (2,-8)
Answer:
- 3 or 1 positive real zeros
- 0 negative real zeros
Step-by-step explanation:
The signs of the coefficients of the given terms are ...
+ - + -
There are three sign changes, so the number of positive real zeros is 3 or 1.
When odd-degree terms have their signs changed, the signs become ...
- - - -
There are no sign changes, hence no negative real zeros.
_____
A graph confirms this evaluation.
