2012
Mathematics
JAMB
The shaded region above is represented by the equation
A.
y ≤ 4x + 2
B.
y ≥ 4x + 2
C.
y ≤ -4x + 4
D.
y ≤ 4x + 4
Correct Answer: y ≤ -4x + 4
Explanation
Equation of the line y − 4/x−0 = 0−4/1−0 y − 4/x = −4/1 ∴ −4x = y −4 y = −4x + 4 ∴ The shaded portion = y ≤ −4x + 4
Equation of the line y − 4/x−0 = 0−4/1−0 y − 4/x = −4/1 ∴ −4x = y −4 y = −4x + 4 ∴ The shaded portion = y ≤ −4x + 4THIS WEEK's
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