X +y = 0 4x + 3y = 10 solve the systems by the method of substitution
1 answer:
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1) Either or
∦
(only two possibilities)
2) Assume (one of two possibilities)
3) (if two parallel lines are cut by a transversal, the corresponding angles are congruent)
4) But is not congruent to
(given)
5) So ∦
(only other possibility)
As we know, slope (m) is equal to tan θ for a straight line :
So, we can say that it's a positive constant slope