Question y-60-6

5.1 Linear Inequalities in One or Two Variables - Graphing two-variable inequalities
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y<6x+2

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

A.
x y
3 20
5 32
7 44
B.
x y
3 16
5 36
7 40
C.
x y
3 16
5 28
7 40
D.
x y
3 24
5 36
7 48

y &#60; 6 x + 2 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 C 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<63+2, or y<20. Therefore, when x = 3 , the corresponding value of y is less than 20 . Substituting 5 for x in the given inequality yields y<65+2, or y<32. Therefore, when x = 5 , the corresponding value of y is less than 32 . Substituting 7 for x in the given inequality yields y<67+2, or y<44. Therefore, when x = 7 , the corresponding value of y is less than 44 . For the table in choice C, when x = 3 , the corresponding value of y is 16 , which is less than 20 ; when x = 5 , the corresponding value of y is 28 , which is less than 32 ; when x = 7 , the corresponding value of y is 40 , which is less than 44 . Therefore, the table in choice C 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 20 , which is not less than 20 ; when x = 5 , the corresponding value of y is 32 , which is not less than 32 ; when x = 7 , the corresponding value of y is 44 , which is not less than 44 .

Choice B is incorrect. In the table for choice B, when x = 5 , the corresponding value of y is 36 , which is not less than 32 .

Choice D is incorrect. In the table for choice D, when x = 3 , the corresponding value of y is 24 , which is not less than 20 ; when x = 5 , the corresponding value of y is 36 , which is not less than 32 ; when x = 7 , the corresponding value of y is 48 , which is not less than 44 .