SOLUTION: 1. Given f(x)=2x+5 and g(x)=8x+2
then what is (f+g)(−9)) ?
2. Given f(x)=10x+8 and g(x)=1x+4
then what is f(g(3)) ?
3. Given f(x)=5x+5 and g(x)=6x+1
then
Algebra.Com
Question 1000956: 1. Given f(x)=2x+5 and g(x)=8x+2
then what is (f+g)(−9)) ?
2. Given f(x)=10x+8 and g(x)=1x+4
then what is f(g(3)) ?
3. Given f(x)=5x+5 and g(x)=6x+1
then what is (f−g)(−8)) ?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
(f+g)(x)=2x+5+8x+2=10x+7. Substituting (-9) and it is -90+7=-83
f(g(3)=start with g(3)=7. f(7)=78.
or f(g(x))=10(x+4)+8=10x+40+8=10x+48=78, when x=3
or g(3)=7 f(7)=78
(f-g)(-8): 5x+5-6x-1=-x+4. With (-8) for x, the answer is 12.
RELATED QUESTIONS
given that f(x) = x2+x+2
and g(x) = x4-x
what are
1. f(g(x))
2. g(f(x))
3. f(f(x))
(answered by stanbon)
Given f (x) = x +1 and g(x) = 2x − 3, determine (f*g)... (answered by Theo)
(1) Given f(x) = 8x - 2 and g(x) = 2x - 3, find f -... (answered by jim_thompson5910)
1)The equation defines a one-to-one function f. Determine f -1 and verify that f f -1... (answered by solver91311)
if f(x)=2x-5 and g(x)=1+x^2, then what is equal to... (answered by josgarithmetic)
Given
f(x) = 2x2 + 1
and
g(x) = 8x − 9,
find the following.
(a)... (answered by stanbon)
Given the parent functions f(x) = log3 (5x − 5) and g(x) = log3 (x − 1), what (answered by ewatrrr)
given f(x) = 8x -2 and g(x) = 2x-3 find... (answered by nyc_function)
Given f(x) = 8x -2 and g(x) = 2x – 3 find f -... (answered by reviewermath)