SOLUTION: When y>0, can i say that the graph all y values must be greater than 0?

Algebra.Com
Question 967736: When y>0, can i say that the graph all y values must be greater than 0?
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
This again, just worded differently? Think where y is found in relation to the x-axis. y=0 everywhere on the x-axis.

When you say, "y>0", WHERE does this come from? What information is missing from the question? If no other conditions are part of this, then think how y=0 and y>0 are different!! Positive values for the vertical axis are upward above the horizontal axis. Negative values for the vertical axis are downward below the horizontal axis.

RELATED QUESTIONS

When y>0, can i say that the y values of the graph must be greater than 0. So, the graph... (answered by josgarithmetic)
But i saw something on yahoo answers. It says if the graph lies above the x axis, y must... (answered by josgarithmetic)
so for this http://www.algebra.com/tutors/students/your-answer.mpl?question=967768. i... (answered by josgarithmetic)
When y>0,do u mean the y values of the graph must be greater than 0 or i am mistaken? And (answered by Theo)
thanks i get you. http://www.algebra.com/tutors/students/your-answer.mpl?question=967769. (answered by josgarithmetic)
so i am making sure of this. If y>0, does this mean all the y values of the graph must be (answered by josgarithmetic)
given that x^2+2x+1>0 , can i say that x^2+2x+1 is the y values of the graph? (answered by Theo)
http://www.algebra.com/algebra/homework/Graphs/Graphs.faq.question.967656.html I really... (answered by Theo)
y=mx+b My answer choices are the following: A) m>0 b<0 B) m<0 b>0 C) m>0 b>0 D)... (answered by rothauserc,MathTherapy)