Simon Rhodes

Mathematics

15 August, 09:46

1.) Given f (x) = x + 3 and g (x) = 13x-5, what is f (4) + g (-2)

A.) 48

B.) 28

C.) - 24

D.) 24

2.) Given f (x) = 7x + 3 and g (x) = 9x, what is g (x) - f (x)

A.) 2x - 3

B.) - 2x - 3

C.) - 2x + 3

D.) 2x + 3

3.) Given f (x) = 3x - 2 and g (x) = 5x, which of the following are true, check all that apply

A.) f (x) ⋅ g (x) = 15x^2 - 2

B.) f (x) ⋅ g (x) = 15x^2 - 10x

C.) f (2) ⋅ g (3) = 60

D.) f (2) ⋅ g (0) = 20

4.) f (x) = x + 6 and g (x) = 12x - 7, what is f (x) + g (x)

A.) 12x-1

B.) 13x - 1

C.) 13x + 13

D.) 12x + 13