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1. Which situation does NOT represent a functional relationship?

[A] Dave is a construction supervisor for several job sites. When Dave secures a contract for an additional job, he must hire 5 new construction workers to cover that Jobsite. The number of construction workers Dave oversees is related to the number of job sites under Dave's supervision.

[B] Betsy opened an account with $2,500 she had saved from a summer job. During the school year, she withdrew $200 each month from the account. The amount of money in Betsy's account is related to the number of months since Betsy opened the account.

[C] As a zoo veterinarian, Wanda is in charge of ordering vitamins for the spider monkeys. To be healthy, each monkey receives 3 vitamins. The number of vitamins that Wanda must order to have healthy spider monkeys is related to how many sider monkeys are kept at the zoo.

[D] Once a week, Rockwell participates in a soccer exercise. Based on Rockwell's performance, the soccer coach assigns two scores to Rockwell's evaluation form. How well Rockwell did on his performance as indicated by his scores is related to the number of weeks since Rockwell started practicing.
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2. Determine A ÷ B, where A = 62x – 100 and B = 2x – 3.

[A]
(1)/(31)

[B] 60x - 97

[C] 31 -
(7)/(2x - 3)

[D]
(7)/(2x - 3)

User RafazZ
by
6.1k points

1 Answer

5 votes

Answer:

  • 1. D
  • 2. C

Explanation:

1. .....................................................................................................

A. This is a functional relationship as the number of workers depend on the number of job sites.

  • y = 5x

B. This is a functional relationship as the amount of money is dependent on the number of withdrawals

  • y = 2500 - 200x

C. This is a functional relationship as the number of vitamins depend on the number of monkeys

  • y = 3x

D. This is NOT a functional relationship as the output is a fixed value. The performance and scoring may repeat.

2. .....................................................................................................

Given

  • A = 62x -100
  • B = 2x - 3

To find

  • A/B

Solution

  • A/B =
  • (62x - 100)/(2x - 3) =
  • (31*2x - 31*3 - 7)/(2x - 3) =
  • (31(2x - 3) -7)/(2x - 3) =
  • 31 - 7/(2x - 3)

Correct option is C.

User Sreenavc
by
6.1k points