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Do Now:

Do Now:. y = x 2 – 8x + 12. Add, subtract, or multiply the complex numbers -3 + 6i – (-5 – 3i) – 8i 2) 4i(-2 – 8i) 3) ( 7 – 6i) + (-8 + 3i) 4) (1 – 7i) 2 5) (8 – 6i) – (-4 – 4i) 6) (-3 + 2i)(-6 – 8i).

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Do Now:

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  1. Do Now:

  2. y = x2 – 8x + 12

  3. Add, subtract, or multiply the complex numbers • -3 + 6i – (-5 – 3i) – 8i 2) 4i(-2 – 8i) 3) ( 7 – 6i) + (-8 + 3i) 4) (1 – 7i)2 5) (8 – 6i) – (-4 – 4i) 6) (-3 + 2i)(-6 – 8i)

  4. The height y (in feet) of a basketball t seconds after it is thrown can be modeled by the function y = -16t2 + 32t + 2 a. Find the maximum height of the basketball. b. When does the basketball hit the ground?

  5. The arch of a bridge can be modeled by y = -0.00211x2 + 1.06x, where x is the distance (in meters) from the left pylons and y is the height (in meters) of the arch above the water. For what distances x is the arch above the road.

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