The following is the graph of a quadratic friction, find the value of x when y = 0
- 1, 2
-
1, 4
- 2, 3
- 1, 6
The correct answer is: B
Explanation
when y = 0, value of x = roots of the equationx2 - 5x + 4 = 0
x = 1, 4 (see graph)