Question

draw the graph of the polynomial f(x) = x²- 2x - 8​

Answer 1

Answer:

Fro the graphs of the polynomial f(x) = x2 - 2x - 8, following observations can be drawn : (i) The coefficient of x2 in f(x) = x2 - 2x - 8 is 1 (a positive real number) and so the parabola opens upwards. (ii) D = b2 - 4ac = 4 + 32 = 36 > 0.