Question

Suppose 'f' is a function with domain [-13,17] and range (2,7]. Find the domain and range of both f(5x+2) and 5 f(x) +2

Answer 1

@genius12

Answer 2

-13<=5x+2<=17
-15<=5x<=15
-3<=x<=3
so domain is [-3,3]

for range multiply every number in the current range by 5 then add 2
(12,37]

Answer 3

range is incorrect

Answer 4

do you know the answer? I don't see how that is wrong
we have range given by f(x) and we need range given by 5f(x) + 2

Answer 5

i believe your correct, however what is the domain for 5 f(x) +2

Answer 6

the same as f(x)

Answer 7

cheers