To solve this problem you must apply the proccedure shown below:
1. You have the following parent function given in the problem above:
2. If you want to shift this parent function up six units, you only have the add a , then, you will obtain the following new function:
Therefore, as you can see, the answer is:
Answer: The director can choose first a lead singer and then a stand-in for the lead singer in 132 ways.
Step-by-step explanation:
Given : The total number of singers auditioning for the school musical.= 12
The director wanted choose first a lead singer and then a stand-in for the lead singer.
We use Permutations here because order of selecting the singers matters.
The number of permutations of selecting r things out of n things =
Similarly , the number of ways to select 2 singers in an order from 12 singers
Hence, the director can choose first a lead singer and then a stand-in for the lead singer in 132 ways.