HELP?
Whatcha need? :)
sorry my OS is really slow
Don't I know it. :) I don't know how to do this one but, @ganeshie8 might be ab;e tp help. Or @mathmate and @zepdrix. :p
Hasn't someone already answered this one yesterday?
@ganeshie8 can you please help me?
start by writing out the coordinates of vertices
Look at the given graph : A = ? B = ? C = ? D = ?
are these correct? A= (-3,1) B= (4,-3) C= (2,3) D= (-1,4)
Excellent !!
u hv to scale each multiplying all numbers with for and take the exact values there are mistakes
they look correct to me :) next just apply the dilation rule for each vertex : multiply both x and y values by 5
@ganeshie8 y multiply by 5 its 4 i think look at the scalling factor
for example, the vertex A goes like below : A= (-3,1) -----> (-3*4, 1*4)
Oh ya the scale factor is 4 !! thanks for catching the typo :)
So the image of A after dilation is (-12, 4)
Find the image of other vertices similarly - just multiply both x and y values by the scale factor 4
for all the coordinates?
Yep !
A= (-12, 4) B= (16, -12) C= (8, -12) D= (-4, 16)
hey use prime notation for image coordinates after dilation
A= (-3,1) ----> A' = (-12, 4) B= (4,-3) ----> B' = (16, -12) C= (2,3) ----> C' = (8, -12) D= (-1,4) ----> D' = (-4, 16)
btw your answer is correct ! very good work !!
what do u mean?
label the vertices of image and preimage differently. dont call them both A
preimage = A image = A'
A
don't bother about it if it confuses u, its just a notation thing :)
``` A= (-12, 4) B= (16, -12) C= (8, -12) D= (-4, 16) ``` You're done after that ^
Join our real-time social learning platform and learn together with your friends!