Algebra 2 A: Seme idCourse-538188idl Secure https://www.connexus.com/content/chr

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Algebra 2 A: Seme idCourse-538188idl Secure https://www.connexus.com/content/chrome/online/lessonViewer.aspx?header true8 Lesson 2: Semester A Exam Algebra 2 A Unit 8: Semester A Review and Exam 1. Suppose you went to a carnival. The price to get in was $8, and you paid $0.50 to get on each (1point) ride. If you went to the carnival and rode 9 rides, how much did you spend? $4.50 $17.50 $12.50 O $13 2. Name the property of real numbers illustrated by the equation. (1 point) 3+4)-3x-12 ° Distributive Property O Associative Property of Addition Associative Property of Multiplication Commutative Property of Addition s unit tes docx ^ viruses and Viral docx ^ natural logotharms.docx ^ QL functions as i

Explanation / Answer

13) y = 15 + 110 x - 16x^2

maximum height occurs at

x = -110 / 2(-16)

x = 3.438

maximum height is

y =  15 + 110 (3.438) - 16(3.438)^2

y = 204.063

it hits the ground

15 + 110 x - 16x^2 = 0

x = [ - 110 +- sqrt ( 110^2 + 15*16 ) ] / -32

x = 7.01

1st option is correct

14) standard equation is

y = ax^2 + bx + c

c = 5

we have two equations

a - b = 10

4a + 2b = 13

solving we get

a = 3 , b = -2

hence, equation is

y = 3x^2 - 2x + 5

1st option is correct

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