Question 9(Multiple Choice Worth 1 points)
(07.06 MC)
An unknown number x is at most 30. Which graph best represents all the values of x?
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-50 40 -30 -20 -10 0 10 20 30 40 50
-50 40-30-20-10 0 10 20 30 40 50
1111
-50 40-30-20-10 0 10 20 30 40 50
++
+++
-50 40 -30 -20 -10 0 10 20 30 40 50