Multiple Choice Question (MCQ)
Which point (x, y) is a solution to the given inequality y < −4x + 4 in
the xyplane?

×
(2, −1)

×
(2, 1)

×
(0, 5)

✓
(−4, 0)
Which point (x, y) is a solution to the given inequality y < −4x + 4 in
the xyplane?
(2, −1)
(2, 1)
(0, 5)
(−4, 0)
(2, −1)
f(x) = −4x + 4
f(2) = 4\cdot 2 +1 = 7
1 > 7
Therefore
A is incorrect
(2, 1)
f(x) = −4x + 4
f(2) = 4\cdot 2 +1 = 7
1 >7
Therefore
B is incorrect
(0, 5)
f(x) = −4x + 4
f(2) = 4\times 0 +1 = 1
5 > 1
Therefore
C is incorrect
(−4, 0)
f(x) = −4x + 4
f(4) = 4\times (4) +1 = 17
0 < 17
Therefore
D is correct