he table gives the wind chill temperature when the outside temperature is 0°F Wind (mph) Chill (°F) (mph) Chill (°F) 25 21 Wind Wind Wind 35 40 14 a. Use x as the wind speed and create a quadratic model for the data. b. At what wind speed does the model estimate that the wind chill will be 14°F? c. Is the model found in part (a) valid for x>63? Explain. 10 13 12 15 20 19 45 17 50 12 11 10 25 16 55 30 15 60

he table gives the wind chill temperature when the outside temperature is 0°F Wind (mph) Chill (°F) (mph) Chill (°F) 25 21 Wind Wind Wind 35 40 14 a. Use x as the wind speed and create a quadratic model for the data. b. At what wind speed does the model estimate that the wind chill will be 14°F? c. Is the model found in part (a) valid for x>63? Explain. 10 13 12 15 20 19 45 17 50 12 11 10 25 16 55 30 15 60

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Concept explainers

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

Question

The table gives the wind chill temperature when the outside temperature is
30 F
Wind Wind
Wind
Wind
(mph) Chill (F) (mph) Chill (F)
35
40
45
50
25
21
19
17
16
15
14
13
12
a. Use x as the wind speed and create a
quadratic model for the data.
b. At what wind speed does the model
estimate that the wind chill will be 14°F?
c. Is the model found in part (a) valid for
x> 637 Explain.
10
15
20
25
12
55
60
11
10
30
a. Determine the quadratic function that best fits the given data,
2.
v3D\0.004x+ -0.501x+26.205
(Use integers or decimals for any numbers in the expression. Round to the nearest thousandth as needed.)
b. Using the unrounded quadratic model from part (a), at what wind speed does the model estimate that the wind chill will be 14 F?
- 15 mph (Round to the nearest whole number as needed.)
c. Is the model found in part (a) valid for x> 63? Explain. Choose the correct answer below.
ent
O A. No. The model is not a good fit.
sigt O B. Yes The function increases for x> 63 and this reflects reality.
O C. Yes. The function will continue to decrease for x> 63.
signi
O D. No. The function's minimum is near 62.6 so the model predicts warmer temperatures for winds over 63 mph.
Click to select your answer(s).
ed Ass
se (1250 LDO6 - SPRING 2021 (MW @ 9 am)) is based on Harshbarger: College Algebra in Context w/ Integrated Review, 5e
Use Privagy Policy Copyright © 2021 Pearson Education Inc. AlI Rights Reserved.

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