Comments

• F(x+h) means to replace all x's with x + h F(x+h) = 2(x+h) + 1 = 2x + 2h + 1 so F(x+h) - F(x) = 2x + 2h + 1 - (2x + 1) 2x + 2h + 1 - 2x -1 = 2h <---- ANSWER Good luck to you !

  in How do I do a problem like this F(x+h)? Comment by needtoknow June 2021
• F(x+h) means to replace all x's with x + h F(x+h) = 2(x+h) + 1 = 2x + 2h + 1 so F(x+h) - F(x) = 2x + 2h + 1 - (2x + 1) 2x + 2h + 1 - 2x -1 = 2h <---- ANSWER Good luck to you !

  in How do I do a problem like this F(x+h)? Comment by needtoknow May 2021