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16 November, 04:24

The amount of money in Toni's savings account after x weeks is described by the function

f (x) = 5x + 20.

Which best interprets this function?

options:

Toni's savings account started with $5 and increased by $20 each week.

Toni's savings account started with $20 and increased by $5 each week.

Toni's savings account started with $20 and decreased by $5 each week.

Toni's savings account started with $5 and decreased by $20 each week

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Answers (1)
  1. 16 November, 04:54
    0
    The correct answer would be B, or the second option.

    In a function like this, the y-intercept, or the term without a variable, can be always be interpreted as a sort of starting amount, or a base amount.

    Because we're given 5x + 20, we know 20 will be the base, or starting value, while 5 is the amount being added per value of x, which is equal to weeks.

    Thus, the correct answer is B.
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