10th Grade Four Operations on Functions

f(2)=4

g(2)=1

Given the above, what is the value of (g - f)(2)?

• A) -3

• B) -2

• C) -1

• D) 1

• E) 2

f(x)=x-1

g(x)=3x+1

Given the above functions, What is (f + g)(1)?

• A) 2

• B) 3

• C) 4

• D) 5

• E) 6

f(x)=x-1

g(x)=3x+1

Given the above functions, What is (3f + g)(2)?

• A) 10

• B) 13

• C) 14

• D) 15

• E) 16

f(x)=x-1

g(x)=3x+1

Given the above functions, What is (f - g)(0)?

• A) -2

• B) -1

• C) 0

• D) 1

• E) 2

f(x)=x-1

g(x)=3x+1

Given the above functions, What is (f . g)(2)?

• A) 3

• B) 4

• C) 5

• D) 6

• E) 7

f={(1,5),(2,3),(3,1),(4,0)}

g={(1,2),(2,4),(3,4)}

Given the above functions, What is (f + g)(1)?

• A) 12

• B) 11

• C) 10

• D) 9

• E) 7

f={(1,5),(2,3),(3,1),(4,0)}

g={(1,2),(2,4),(3,4)}

Given the above functions, What is (f + 2g)(1)?

• A) 12

• B) 11

• C) 10

• D) 9

• E) 7

f={(1,5),(2,3),(3,1),(4,0)}

g={(1,2),(2,4),(3,4)}

Given the above functions, What is (2f - g)(3)?

• A) 1

• B) -1

• C) 0

• D) 2

• E) -2

f={(1,5),(2,3),(3,1),(4,0)}

g={(1,2),(2,4),(3,4)}

Given the above functions, What is (3f - 2g)(2)?

• A) 5

• B) 4

• C) 3

• D) 2

• E) 1

f(x)=x

g(x)=x-2

Given the above, which one is equal to (f . g)(x)?

• A) x² + 2x

• B) x² + x

• C) x² - 1

• D) x² - 2x

• E) x² - 2