Question

Suppose that the functions p and q are defined as follows.

p(x) = 2x+5
q (x) = 3x-5
Find the following.
(p•q)(1)=
(q•p)(1)=

Answer 1

(poq)(1) = 1

(qop)(1) = 16

Explanation:

(poq)(1) = p(q(1))

= p(3(1) - 5)

= p(-2)

= 2(-2) + 5

= 1

(qop)(1) = q(p(1))

= q(2(1) +5)

= q(7)

= 3(7) - 5

= 16