Can you help me out? In a test
1 answer:
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Answer:
A.
Step-by-step explanation:
The scale factor of dilation is the ratio of the length of any of the corresponding sides of rectangle R'S'T'Q to rectangle PQRS.
R'S' = 3
RS = 15
Thus,
Scale factor =
Simplify
Scale factor =
1. Here the question is either
a: f(x-1)=
, what is f(x)?
or
b) f(1-x)=, what is f(x)?
Case a: f(x-1)=, what is f(x)?
substitute x with x+1 in both sides. The reason is to get rid of 1 in the f() expression:
f((x+1)-1)=
f(x+1-1)=
f(x)=
b) in case b substitute x with (1-x) in both sides so that we get:
f(1-x)=f(1-(1-x))=f(1-1+x)=f(x)
a: f(x-1)=
or
b) f(1-x)=
Case a: f(x-1)=
substitute x with x+1 in both sides. The reason is to get rid of 1 in the f() expression:
f((x+1)-1)=
f(x+1-1)=
f(x)=
b) in case b substitute x with (1-x) in both sides so that we get:
f(1-x)=f(1-(1-x))=f(1-1+x)=f(x)