• Best of luck to the class of 2025 for their HSC exams. You got this!
    Let us know your thoughts on the HSC exams here

Dilation Help (1 Viewer)

csi

Member
Joined
Nov 10, 2019
Messages
94
Gender
Undisclosed
HSC
2021
Hi,

Can someone please explain how to dilate k(x-2)^2+c in the positive y-direction by a factor of 4. Does this mean horizontally dilating the function?

Note: the answer is y=4k(x-2)^2+4c
 

B1andB2

oui oui baguette
Joined
Nov 6, 2019
Messages
575
Location
cuddles lane
Gender
Undisclosed
HSC
N/A
Vertical dilation, so basically all the y values are affected (which is why the question describes it as positive y direction)

replace y by y/4 and then times the 4 over

if it was a horizontal dilation you replace the x instead
 

csi

Member
Joined
Nov 10, 2019
Messages
94
Gender
Undisclosed
HSC
2021
Vertical dilation, so basically all the y values are affected (which is why the question describes it as positive y direction)

replace y by y/4 and then times the 4 over

if it was a horizontal dilation you replace the x instead
Thanks
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top