Thursday
May 5, 2016

# Homework Help: Functions

Posted by Lena on Friday, April 10, 2009 at 1:44am.

The function y = x becomes y= -2(3x+2)-5. Describe the order in which the transformations would take place.

1. The function is stretched vertically by a factor of 2
2. The function is compressed horizontally by a factor of 1/3
3. The graph is reflected into the x-axis
4. The graph translates 2 units to the left
5. The graph translates downwards 5 units

Is that correct?
• Functions - Lena, Friday, April 10, 2009 at 1:44am

The function is stretched vertically by a factor of 2

The function is compressed horizontally by a factor of 1/3

The graph is reflected into the x-axis

The graph translates 2 units to the left

The graph translates downwards 5 units

IS THAT CORRECT?

• Functions - Damon, Friday, April 10, 2009 at 2:05am

The function is compressed horizontally by a factor of 1/3 (or stretched vertically by 3)
y = 3 x

Translates 2 units up
y = 3x+2

reflects over x axis
y = -(3x+2)

stretch vertically by 2
y = -2(3x+2)

down 5