Use the discriminant to predict the number of horizontal
Chapter 8, Problem 8.4.10(choose chapter or problem)
Use the discriminant to predict the number of horizontal intercepts for each function. Then use the quadratic formula to find all the zeros. Identify the coordinates of any horizontal or vertical intercepts. a. y 5 2x2 1 3x 2 5 b. (x) 5 216 1 8x 2 x2 c. (x) 5 x2 1 2x 1 2 d. y 5 2(x 2 1)2 1 1 e. g(z) 5 5 2 3z 2 z2 f. (t) 5 (t 1 2)(t 2 4) 1 9
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