Find f(1) + f(2) + f(3) + ... + f(20), given that f(x) = 3x - 4.
A) 554
B) 1,100
C) 550
D) 540

Name: Find f(1) + f(2) + f(3) + ... + f(20), given that f(x) = 3x - 4. A) 554 B) 1,100 C) 550 D) 540
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Question

Find f(1) + f(2) + f(3) + ... + f(20), given that f(x) = 3x - 4. ​
A) 554
B) 1,100
C) 550
D) 540

Quizplus · Accepted Answer

To find the sum of f(x) from 1 to 20, calculate the sum of the sequence: f(x) = 3x - 4. The sum is: Σ(3x - 4) from x=1 to 20 = 3Σx - 4*20. The sum of x from 1 to 20 is (20*21)/2 = 210. Therefore, 3*210 - 80 = 550.

Find F(1) + F(2) + F(3)