9. i^2= -1, What is ( 4 + i)^2? * O A. 15 О в.17 O C. 15 + 4i O D. 15 +8i 10.What is the vertex of the graph of f(x)= x^2 -2x -3? * O A. (1,2) O B.(1,4) C.(1,-4)

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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9. i^2= -1, What is ( 4 + i)^2 ? *
O A. 15
B.17
O C. 15 + 4i
O D. 15 +8i
10.What is the vertex of the graph of f(x)= x^2-2x-3? *
O A. (1,2)
O B.(1,4)
C.(1,-4)
Transcribed Image Text:9. i^2= -1, What is ( 4 + i)^2 ? * O A. 15 B.17 O C. 15 + 4i O D. 15 +8i 10.What is the vertex of the graph of f(x)= x^2-2x-3? * O A. (1,2) O B.(1,4) C.(1,-4)
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