If b2 - 4ac is less than zero, then there are no solutions. This means that there are no values of x giving a value of y of zero, hence the graph of the curve will not cross the x-axis.
1. The straight line y = 4x + 3 does not intersect the curve
y = 2x2 - x + k. Find the range of values of k.
2. Given f (x) = 2x2 + bx + c has a minimum value of 5
when x = 1. Find the values of b and c.
Mesti cuba.... kalau nasib baik,bentuk ni keluar dalam Paper 1....
Ingat ! Practice Makes Perfect
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