Transformation: Dilation

Start with y= f(x).Do a vertical stretch; the y-values on the graph should be multiplied by 8.What is the new equation?

• y=f(8)

• y=8f(x)

• 8=f(x)

• y=f(8x)

Start with y=f(x). Do a vertical shrink; the

y-values on the graph should be divided by 7. What is the new equation?

• $y=\frac{1}{4}f\left(x\right)$

• $\text{1/4}=f\left(x\right)$

• None

• $y=f\left(\frac{1}{4}\right)$

Start with y=f(x). Do a horizontal stretch; the x-values on the graph should be multiplied by 6. What is the new equation?

•  $\frac{6}{x}=f\left(x\right)$  

•  $y=\frac{x}{6}\left(x\right)$  

•  $y=f\left(\frac{x}{6}\right)$  

• All of above

Start with y=f(x). Do a horizontal shrink; the

x-values on the graph should be divided by 7.What is the new equation?

• None

• y=7(x)

• y=f(7x)

• 7=f(x)

 $Start\ with\ y=x^2.\ Do\ a\ vertical\ stretch;$  the y-values on the graph should be multiplied by 8. What is the new equation?

•  $8=x^2$  

•  $y=8x^2$  

• All of above

 $\ Start\ with\ y=x^2$ .  Do a vertical shrink; the y-values on the graph should be divided by 6.What is the new equation?

• None of above

•  $\frac{1}{6}=x^2$  

•  $y=\frac{1}{6}x^2$  

A vertical stretch or compression

*Hint purple is the first equation.

• vertical compression

• vertical stretch

Which one does this graph represents

*Hints: Purple is the first one

• vertical compression

• vertical stretch

• horizontal compression

• vertical compression

Which does this graph represents

*Hint: Purple is the first one

• horizontal shrink

• vertical shrink

• horizontal stretch

• vertical stretch

What does this graph represents

*Hints: Purple is the first one

• Vertical Stretch

• Horizontal Shrink

• Horizontal Stretch

• Vertical Shrink