Question

Which of the following coordinates is not a solution to the system:

x > 3

y ≤ 2x - 5


(3, -1)


(8, 0)


(4, -1)


(4, -4)

2. Which of the following systems of inequalities would have no solution?


A. y > 3x + 1

y < 3x + 8


B. y > 2x + 1

y < -3x


c. y < 3x + 1

y > 3x + 8


D. y > 1/2x + 8

y < -2x -2

Answer 1

number 1 (3, -1) is not a solution as 3 is not greater than three

Answer 2

and c has no solution in the second problem as the lines are parallel...the y>3x+8 line is further left and above and all solutions are to its left and the y<3x+1 line is further right and all its solutions are to its right and below