1) The graph of a quadratic equation is called_____________. a) Parabola b) hyperbola c) line d) circle 2) According to the definition of a Quadratic Function, the coefficient of the second-degree term must be a _________.  a) zero b) non-zero c) undefined d) equal 3) How can we say that the parabola opens upward? a) When the value of 𝑎=0. b) When the value of 𝑎>0. c) When the value of 𝑏=0 d) When the value of 𝑏>0. 4) Which of the following is a quadratic function? a) 𝑦=𝑥+3 b) 𝑦=𝑥(𝑥2+2𝑥−3) c) . 𝑦=𝑥2+3𝑥+9 d) 𝑦=𝑥2(𝑥2−4𝑥+3) 5) Below are relation that represents a quadratic function except: a) b) c) d)

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