Identify the sequence of transformations

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Reference no: EM131270839

Question 1:

Students in a maths class take a final test and then are tested with equivalent exams monthly after that. The average test results, T , after, n , months, was found to be given by ( T = 74.5-22log?(n+1) ).

What was the initial class average?

What was the average after 3 months?

After how many months would be expected that the average mark would be less than 50?

Question 2:

The following sequence of transformations is applied to the curve y=2x2

Translate 1 unit parallel to the positive x-axis

Translate -1 unit parallel to the positive y-axis

Dilate parallel to the x-axis by a factor of ½

State the equation of the resulting curve. You are not required to simplify your answer.

Question 3:

Identify the sequence of transformations required to map:

y = ln?(x+3) to y = ln?((x-4)/2)

y = e-2x to 2ex+1

Reference no: EM131270839

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