PLEASE HELP WILL MEDAL

Given f(x) = x + 9 and g(x) = 5x, what is f(3) + g(-3)?

-3

3

-27

27

Using f(x) = 3x - 3 and g(x) = 2x, what is f(4) - g(2) ?

5

-5

10

-10

Given f(x) = 6x + 2 and g(x) = x3 , what is f(x) g(x)?

6x4 + 2

8x3

6x4 + 2x3

6x3 + 2

Question

PLEASE HELP WILL MEDAL 


Given  f(x) = x + 9 and  g(x) = 5x, what is  f(3) + g(-3)?


		
-3

		
3

		
-27

		
27




Using  f(x) = 3x - 3 and  g(x) = 2x, what is  f(4) - g(2) ?


		
5

		
-5

		
10

		
-10




Given  f(x) = 6x + 2 and g(x) = x3 , what is  f(x)   g(x)?


		
6x4 + 2

		
8x3

		
6x4 + 2x3

		
6x3 + 2

michele_laino · Answer

hint:
question #1
we have $f(3)=3+9=...$, and $g(-3)=5 \cdot (-3)=...$