Which number below belong to the solution set of the equation 18x=198? check all that apply
1 answer:
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Answer:
<h3> sum of the roots:From Vieta's formulas applied to quadratic polynomial we have:
if then
sum of roots:
product of the roots:
Alright...so the coordinates of an ordered pair have opposite signs [one sign is positive while the other is negative] so we could have an example of (-x,+y) or (+x,-y) ...that means out of the 4 quadrants these points could be in the 2nd quadrant or the 4th quadrant or corners of the graph
