Question

What’s the scale factor in the dilation?
Help it’s not that hard help me out I give crowns

Answer 1

Option (4)

Explanation:

From the graph attached,

ΔABC is the preimage and ΔA'B'C' is image of ΔABC when dilated by a scale factor 'k'.

Scale factor 'k' =
`\frac{\text{Dimension of image triangle A'B'C'}}{\text{Dimension of preimage triangle ABC}}`

'k' =
`(A'C')/(AC)`

=
`(7.5)/(3)`

= 2.5

=
`2(1)/(2)`

Therefore, Option (4) will be the correct option.