Question

Find the solution, given the replacement set.
5x - 2y = 6 {(-2, -8), (0, -3), (1, -1), (2, 4), (4, 7)}
A. {(-2, -8), (2, 4), (4, 7)}
B. {(-2, -8), (0, -3), (4, 7)}
C. {(-2, -8), (0, -3), (1, -1)}
D. {(1, -1), (2, 4), (4, 7)}

Answer 1

substitute each ordered pair and find which gives a value of 6

there is more than 1 ordered pair that is a solution

e.g. use (-2, -8) so 5*(-2) -2*(-8) = -10 + 16 = 6

so (-2, -8) is a solution '

try (1, -1) 5*1 -2*(-1) = 5 + 2 = 7'

not in the solution set.

Hope this helps you find the correct answer