What transformations are needed to change the parent cosine function to y=3cos(10(x-

The graph of is:

*Stretched vertically by a factor of 3

*Compressed horizontally by a factor   .

*Moves horizontally units to the rigth

The transformation is:

Step-by-step explanation:

If  the function  represents the transformations made to the graph of  then, by definition:

If   then the graph is compressed vertically by a factor c.

If   then the graph is stretched vertically by a factor c

If  then the graph is reflected on the x axis.

If The graph moves horizontally b units to the left

If The graph moves horizontally b units to the rigth

If the graph is stretched horizontally  by a factor

If the graph is compressed horizontally by a factor

In this problem we have the function and our parent function is

The transformation is:

Then  and and

Therefore the graph of is:

Stretched vertically by a factor of 3.

Also as the graph is compressed horizontally by a factor   .

Also, as The graph moves horizontally units to the rigth

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be

hey pal. the answer is b plz mark as brainliest