Math Problem Statement

A basketball player's "hang time" is the amount of time the player remains suspended in the air after a jump. The height (in meters) of superstar Michael Jordan during a jump is shown in the graph below. Assume that [h] is the distance from the ground to the lowest part of his body at [t] seconds. Complete the following sentences based on the graph of the function. Round your answers to the nearest tenth. This is the graph of a

function. Michael Jordan's hang time is second(s). The maximum height is about meter(s) . For [t] between [t=0.5] and [t=1], the height is

. An XY coordinate plane a line plotted. The horizontal x axis represents the time, in seconds, and runs from 0 to 2 in intervals of 0.1. The vertical y axis represents the height, in meters, and runs from negative 0.5 to 1.5 in intervals of 0.1. The function increases and decreases as it moves left to right. The function passes through the points (0, 0), (0.2, 0.7), (0.3, 0.9), (0.6, 0.9), (0.7, 0.7), and (0.9, 0).

Solution

Solution:

This problem involves analyzing a graph to complete the sentences. Based on the given details:

  1. Type of Function: The function represents a quadratic function because the graph forms a parabolic shape, opening downward.

  2. Michael Jordan's Hang Time: Hang time is the total time he remains airborne. Based on the graph, the height starts at t=0t = 0, returns to the ground at t=0.9t = 0.9, and thus the hang time is 0.9 seconds.

  3. Maximum Height: The graph reaches its maximum height at t=0.3t = 0.3 or t=0.6t = 0.6 (the vertex). At this point, the height is h=0.9h = 0.9 meters. Thus, the maximum height is approximately 0.9 meters.

  4. Height Between t=0.5t = 0.5 and t=1t = 1: For tt in the interval [0.5,1][0.5, 1], the function is decreasing.

    • At t=0.5t = 0.5, h=0.8h = 0.8 meters.
    • At t=0.6t = 0.6, h=0.9h = 0.9 meters.
    • At t=0.7t = 0.7, h=0.7h = 0.7 meters.
    • At t=0.9t = 0.9, h=0h = 0 meters.

Thus, for tt between 0.50.5 and 11, the height ranges from 0.9 meters to 0 meters, decreasing.


Completed Sentences:

  1. This is the graph of a quadratic function.
  2. Michael Jordan's hang time is 0.9 seconds.
  3. The maximum height is about 0.9 meters.
  4. For tt between t=0.5t = 0.5 and t=1t = 1, the height is decreasing from 0.9 meters to 0 meters.

Would you like a breakdown of any specific part of this explanation?
Here are 5 related questions to explore further:

  1. How do you determine if a function is quadratic from its graph?
  2. Why is the hang time calculated as the time from takeoff to landing?
  3. What is the significance of the vertex in a quadratic function?
  4. How do you compute the height of a parabola at specific intervals?
  5. What are some practical applications of analyzing projectile motion using quadratic functions?

Tip: Always identify key points on the graph (such as vertex, intercepts, and symmetry) to understand the behavior of quadratic functions.

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Math Problem Analysis

Mathematical Concepts

Quadratic Functions
Graph Interpretation
Projectile Motion

Formulas

h(t) = -at^2 + bt + c (general quadratic function)

Theorems

Properties of Parabolas
Vertex of a Quadratic Function

Suitable Grade Level

Grades 9-10