Question y-62-1

5.1 Linear Inequalities in One or Two Variables - Graphing two-variable inequalities
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y>13x-18

For which of the following tables are all the values of x and their corresponding values of y solutions to the given inequality?

A.
B.
C.
D.

y > 13 x - 18 For which of the following tables are all the values

Hard-difficulty · SAT Math · Linear Inequalities in One or Two Variables — Graphing two-variable inequalities. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

Choice D is correct. All the tables in the choices have the same three values of x , so each of the three values of x can be substituted in the given inequality to compare the corresponding values of y in each of the tables. Substituting 3 for x in the given inequality yields y>133-18, or y>21. Therefore, when x = 3 , the corresponding value of y is greater than 21 . Substituting 5 for x in the given inequality yields y>135-18, or y>47. Therefore, when x = 5 , the corresponding value of y is greater than 47 . Substituting 8 for x in the given inequality yields y>138-18, or y>86. Therefore, when x = 8 , the corresponding value of y is greater than 86 . For the table in choice D, when x = 3 , the corresponding value of y is 26 , which is greater than 21 ; when x = 5 , the corresponding value of y is 52 , which is greater than 47 ; when x = 8 , the corresponding value of y is 91 , which is greater than 86 . Therefore, the table in choice D gives values of x and their corresponding values of y that are all solutions to the given inequality.

Choice A is incorrect. In the table for choice A, when x = 3 , the corresponding value of y is 21 , which is not greater than 21 ; when x = 5 , the corresponding value of y is 47 , which is not greater than 47 ; when x = 8 , the corresponding value of y is 86 , which is not greater than 86 .

Choice B is incorrect. In the table for choice B, when x = 5 , the corresponding value of y is 42 , which is not greater than 47 ; when x = 8 , the corresponding value of y is 86 , which is not greater than 86 .

Choice C is incorrect. In the table for choice C, when x = 3 , the corresponding value of y is 16 , which is not greater than 21 ; when x = 5 , the corresponding value of y is 42 , which is not greater than 47 ; when x = 8 , the corresponding value of y is 81 , which is not greater than 86 .