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Part 1 of 2 Micah found the vertex for the function y = -9.5x2 - 47.5x + 63 as shown. Find and correct Micah's error. Explain the error. b メニ 2a O A. Micah did not use the correct order-of-operations dividing 47.5 by 2(-9.5). O B. Micah should have evaluated the function with x =0 to find the y-coordinate. 47.5 X= - 2(-9.5) 47.5 メニー-19 OC. Micah used the wrong sign for b in the formula x = 2a x = -(- 2.5) x = 2.5 y = -9.5(2.5) - 47.5(2.5) + 63 y = - 59.375 - 118.75+ 63 y = - 115.125 O D. Micah should have found a positive value when he simplified the - 9.5(2.5) term.

Part 1 of 2 Micah found the vertex for the function y = -9.5x2 - 47.5x + 63 as shown. Find and correct Micah's error. Explain the error. b メニ 2a O A. Micah did not use the correct order-of-operations dividing 47.5 by 2(-9.5). O B. Micah should have evaluated the function with x =0 to find the y-coordinate. 47.5 X= - 2(-9.5) 47.5 メニー-19 OC. Micah used the wrong sign for b in the formula x = 2a x = -(- 2.5) x = 2.5 y = -9.5(2.5) - 47.5(2.5) + 63 y = - 59.375 - 118.75+ 63 y = - 115.125 O D. Micah should have found a positive value when he simplified the - 9.5(2.5) term.

Algebra and Trigonometry (6th Edition)
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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I for School: Practice and Problem-Solving HW Part 1 of 2 Micah found the vertex for the function y = -9.5x2 - 47.5x + 63 as shown. Find and correct Micah's error. Explain the error. O A. Micah did not use the correct order-of-operations dividing 47.5 by 2(-9.5). b X= - 2a O B. Micah should have evaluated the function with x = 0 to find the 47.5 メ=-1-9.5) y-coordinate. 47.5 X = -- OC. Micah used the wrong sign for b in the formula x = 2a - 19 x = -(-2.5) x= 2.5 y = - 9.5(2.5)2 - 47.5(2.5) + 63 y = - 59.375 - 118.75+ 63 y = - 115.125 O D. Micah should have found a positive value when he simplified the - 9.5(2.5) term. Clear All Check Answer Video Textbook Get More Help - Review progress Question 2 of 10 + Back Next Sign o
Transcribed Image Text:I for School: Practice and Problem-Solving HW Part 1 of 2 Micah found the vertex for the function y = -9.5x2 - 47.5x + 63 as shown. Find and correct Micah's error. Explain the error. O A. Micah did not use the correct order-of-operations dividing 47.5 by 2(-9.5). b X= - 2a O B. Micah should have evaluated the function with x = 0 to find the 47.5 メ=-1-9.5) y-coordinate. 47.5 X = -- OC. Micah used the wrong sign for b in the formula x = 2a - 19 x = -(-2.5) x= 2.5 y = - 9.5(2.5)2 - 47.5(2.5) + 63 y = - 59.375 - 118.75+ 63 y = - 115.125 O D. Micah should have found a positive value when he simplified the - 9.5(2.5) term. Clear All Check Answer Video Textbook Get More Help - Review progress Question 2 of 10 + Back Next Sign o
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