1. An object is thrown into the air and returns to the ground. The equation relating height and time for this object is h(t)=-4.91(t- 2), where h is the height in meters and t is the time in seconds. a) In which form is the quadratic function expressed? Justify your answer. b) Find the zeros or t-intercepts of this function. Explain their significance. 3. c) Write the function in standard form d) Pind the co-ordinates of the vertex. Is this vertex a maximum or minimum? Explain the significance of this point? 4

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Roots

The main dissimilarity between real and complex roots is that the real roots are obtained as real numbers, in contrast with the complex roots, which are indicated as imaginary numbers. The standard format for depicting any complex number is in the form of a + bi.