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What happens to the value of the expression 
1+3f as 
f increases?
Choose 1 answer:
A It increases.
(B) It decreases.
(C) It stays the same.

What happens to the value of the expression 1+3f 1+3 f as f f increases?\newlineChoose 11 answer:\newline(A) It increases.\newline(B) It decreases.\newline(C) It stays the same.

Full solution

Q. What happens to the value of the expression 1+3f 1+3 f as f f increases?\newlineChoose 11 answer:\newline(A) It increases.\newline(B) It decreases.\newline(C) It stays the same.
  1. Analysis of the expression: Let's analyze the expression 1+3f1+3f.\newlineAs ff increases, we multiply this increase by 33 (since ff is multiplied by 33 in the expression).\newlineThis means that the whole expression 1+3f1+3f will increase by three times whatever amount ff increases.
  2. Increase in expression with increasing ff: To check this, let's pick two values for ff, where the second value is greater than the first.\newlineFor example, let f1=1f_1 = 1 and f2=2f_2 = 2.\newlineWhen f=f1f = f_1, the expression 1+3f1+3f becomes 1+3(1)=1+3=41+3(1) = 1+3 = 4.\newlineWhen f=f2f = f_2, the expression 1+3f1+3f becomes 1+3(2)=1+6=71+3(2) = 1+6 = 7.\newlineWe can see that as ff increased from ff11 to ff22, the value of the expression increased from ff33 to ff44.
  3. Checking with specific values of f f : Since the expression increases whenever f f increases, we can conclude that the value of the expression 1+3f 1+3f increases as f f increases.\newlineTherefore, the correct answer is A) It increases.

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