GRE Math : Number Line

Study concepts, example questions & explanations for GRE Math

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Example Questions

Example Question #124 : Arithmetic

Numberline2

Which of the statements is always true?

Possible Answers:

Correct answer:

Explanation:

Although C may approach zero for large values of  and values of , it will never actually reach it for real values.

A and B, however, have x and y values which make them false:

For  A, an example is 

For B,  would make the value zero.

Example Question #3 : Graphing An Inequality With A Number Line

Which of the following is a graph for the values of  defined by the inequality stated above?

Possible Answers:

Ineq14

Ineq12

Ineq15

Ineq11

Ineq13

Correct answer:

Ineq11

Explanation:

Begin by solving for :

Now, this is represented by drawing an open circle at 6 and graphing upward to infinity:

Ineq11

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