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kumpel [21]
2 years ago
13

Select the correct answer. Tracy is practicing singing for a competition. She increases the length of her daily practices by the

same amount each day and records her time in the table. Day Practice Time (minutes) 1 25 2 36 3 47 4 58 5 69 Select the explicit function which defines the sequence represented in the table.
Mathematics
1 answer:
Lostsunrise [7]2 years ago
7 0

Answer:

f(x) = 11x +14

Step-by-step explanation:

Given

The table in the question

Required

The explicit function

First, we calculate the slope of the table:

m = \frac{y_2 - y_1}{x_2 - x_1}

Where:

(x_1,y_1) = (1,25)

(x_1,y_1) = (3,47)

So:

m = \frac{47 - 25}{3 - 1}

m = \frac{22}{2}

m = 11

The equation is then calculated using:

y - y_1 = m(x - x_1)

So, we have:

y - 25 = 11(x - 1)

y - 25 = 11x - 11

y = 11x - 11+25

y = 11x +14

So, the function is:

f(x) = 11x +14

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Answer:

Total profit is 26,900.

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The first term of a geometric series is 3, and the sum of the first term and the second term is 15. What is the sum of the first
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Step-by-step explanation:

Let x  denotes the amount for total bill.

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