Mathematics

Allisson Norris

3 August, 11:46

1. What is the sum of p and q?

p (x) = 3x - 11 q (x) = 4 - 4x

a) (p + q) (x) = - x - 7

b) (p + q) (x) = - x + 15

c) (p + q) (x) = 7x - 7

d) (p + q) (x) = 7x + 15

2. What is the difference of t and v?

t (x) = 7x - 2 v (x) = x - 9

a) (t - v) (x) = - 6x - 11

b) (t - v) (x) = - 6x - 7

c) (t - v) (x) = 6x + 7

d) (t - v) (x) = 6x - 11

3. Nina makes and sells necklaces. For n necklaces, her revenue function is r (n) = 11.75n and her cost function is c (n) = 8.9 + 1.2n.

Which function is Nina's profit function?

a) p (n) = 10.55n - 8.9

b) p (n) = 12.95n - 8.9

c) p (n) = 12.95n + 8.9

d) p (n) = 14.1n + 8.9