Which of the following points is a solution of the inequality y-2x+5
A. (-1,4)
B. (0,5)
C. (-2,8)
D. (1,-2)

Question

Which of the following points is a solution of the inequality y>-2x+5 
A. (-1,4)
B. (0,5)
C. (-2,8)
D. (1,-2)

stamp · Answer

(-1, 4) @ y > -2x + 5

(4) > -2(-1) + 5

4 > 2 + 5, 4 > 7

four is not greater than seven, so answer choice A is not a solution to the inequality.

cenaida · Answer

Then if its not could it be D ?

stamp · Answer

(1,-2) @ y > -2x + 5

(-2) > -2(1) + 5

-2 > -2 + 5

-2 > 3

-2 is not greater than 3, tho I could be mistaken.

cenaida · Answer

Oh its probably C then ?..

stamp · Answer

idk how about you show me

anonymous · Answer

So, given the values of x and y just plug in those numbers to $$y >-2x+5$$But, REMEMBER that it should satisfy the idea that Y is ALWAYS greater than the right side.

precal · Answer

|dw:1365111195348:dw|

precal · Answer

|dw:1365111230685:dw|all the points in the shaded region are solutions to the inequality