Need answer =)

the concert attendees roared their approval. the band played a new song.

which revision uses a subordinating conjunction to combine the two sentences?

the concert attendees roared their approval; meanwhile, the band played a new song.
the concert attendees roared their approval while the band played a new song.
the concert attendees roared their approval, so the band played a new song.
the concert attendees roared their approval and the band played a new song.

The correct answer is B. The concert attendees roared their approval while the band played a new song.

There are two types of conjunctions: coordinating ones (which are used to combine independent sentences), and subordinating ones (which combine an independent sentence with subordinate ones). In the options above, meanwhile, so, and and are all coordinating conjunctions - the only one that isn't is while.

This means that the clause the band played a new song is a subordinating clause (dependent, cannot stand on its own) connected to the independent one - The concert attendees roared their approval.

Horizontal stretch by a factor of ½.

Step-by-step explanation:

We were given the parent function as:

This was transformed to:

Let

and

Then:

Hence the parent function has been stretched horizontally by a factor of 1/2 to obtain the transformed function.