Quadratic Functions Review Worksheets With Answer Key Page 13

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ID: A
5. ANS:
Graph the function for t ≥ 0 using technology.
a) From the graph, the maximum height is about 6.5 m.
b) It takes about 0.7 s to reach the maximum height.
c) The t-intercept is approximately 1.8. It takes Nina about 1.8 s to enter the water.
d) Substituting t = 0 into the equation, or reading from the graph at t = 0, h = 4. So, the board is 4 m above
the water.
PTS: 1
DIF: Average
OBJ: Section 3.3
NAT: RF 4
TOP: Completing the Square
KEY: standard form | modelling
6

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