The following is the graph of a quadratic frict... - WAEC Mathematics 2009 Question
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
correct option: b
when y = 0, value of x = roots of the equation
x2 - 5x + 4 = 0
x = 1, 4 (see graph)
x2 - 5x + 4 = 0
x = 1, 4 (see graph)
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