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Draw the graph of the polynomial f(x)=-4...

Draw the graph of the polynomial `f(x)=-42+4x-1.` Also find the vertex of this parabola.

Text Solution

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Let `y = -4 x^2 + 4x - 1`.
The following table gives the values of y or f(x) for various values of x.
[X_RD_2_E01_05 (a)]
Plot the points on the graph.
[X_RD_2_E01_05 (b)]
Thus, the vertex of the parabola is `(1/2, 0)`.
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