Question on: WAEC Mathematics - 2009

The following is the graph of a quadratic friction, find the value of x when y = 0

A
1, 2
B
1, 4
C
2, 3
D
1, 6
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Correct Option: B

when y = 0, value of x = roots of the equation

x2 - 5x + 4 = 0

x = 1, 4 (see graph)

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