You are not logged in.
Pages: 1
1. For f(x) = 2x + 1; g(x) = 3x - 2, find (f + g)(x) and (f - g)(x).
2. For f(x) = 2x^2 + 3; g(x) = 4x^3 + 1, find (f • g)(x) and (f/g)(x).
Question 1
(f + g)(x) = f(x) + g(x)
(f + g)(x) = 2x + 1 + 3x - 2
(f + g)(x) = 5x - 1
(f - g)(x) = f(x) - g(x)
(f - g)(x) = 2x + 1 -(3x - 2)
(f - g)(x) = 2x + 1 - 3x + 2
(f -g)(x) = -x + 3
Question 2
(f • g)(x) = f(x) • g(x)
(f • g)(x) = (2x^2 + 3)(4x^3 + 1)
(f • g)(x) = 8x^5 + 2x^2 + 12x^3 + 3
(f • g)(x) = 8x^5 + 12x^3 + 2x^2 + 3
(f/g)(x) = f(x)/g(x)
(f/g)(x) = (2x^2 + 3)/(4x^3 + 1)...Do I stop here?
You say?
The greatest truth about the Rapture is not its timing but it's reality.
Dr. David Jeremiah
Offline
All you did is right.
Offline
All you did is right.
Looks good, feels good, all is good.
By the way, I am going through the entire College Algebra Edition 9 textbook by Michael Sullivan. It is a self-study of mathematics.
The greatest truth about the Rapture is not its timing but it's reality.
Dr. David Jeremiah
Offline
Pages: 1