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General Information

Related Standards: MAFS.912.F-IF.3.8
Reporting Category: Functions: Interpreting Functions
Type: MS: Multiselect
Difficulty: N/A
Question:

A bird drops a stick from the top of Miami Tower. The height of the stick after x seconds is given by 

f(x)=625-16x²

Select all the correct interpretations of the coordinates of the point at the maximum of the function f(x).

Answer Options:

A. The time it takes the stick to hit the ground.

B. The time when the stick is at its highest point.

C. The height of the stick when it is dropped from Miami Tower.

D. The time when the stick is dropped from the top of Miami Tower.

E. The distance of the stick from Miami Tower when it hits the ground.

Answer Key:
B,C,D

Aligned Standards

Code Description
MAFS.912.F-IF.3.8: Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function.
  1. Use the process of factoring and completing the square in a quadratic function to show zeros, extreme values, and symmetry of the graph, and interpret these in terms of a context.
  2. Use the properties of exponents to interpret expressions for exponential functions. For example, identify percent rate of change in functions such as y = , y = , y = , y = , and classify them as representing exponential growth or decay.


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