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26 votes
26 votes
1. Plot the following points by hand or using an online graphing calculator. What is the function that best fits the points?

(0, 3), (1, 6), (2, 12), (3, 24)

•Linear

•Exponential

•Quadratic

User Mkonovalov
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2 Answers

21 votes
21 votes
Exponential. This is an exponential function since it’s being multiplied by a constant rate. That rate is 2. The y axis is constantly being multiplied by 2. 3*2 is 6, 6*2 is 12, 12*2 is 24.
User Ashish Beuwria
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2.9k points
20 votes
20 votes

The function that best fits the points (0, 3), (1, 6), (2, 12), (3, 24) is an exponential function, specifically y = 3 * 2^x.

To determine the function that best fits the given points (0, 3), (1, 6), (2, 12), (3, 24), we can analyze the relationship between the x-values (independent variable) and the y-values (dependent variable) by plotting the points and examining the pattern of the data.

When plotted on a graph, it can be seen that as x increases, y is not increasing by the same amount each time, which eliminates a linear relationship. Instead, for each increase in x, the value of y doubles, which is characteristic of an exponential function.

Unlike a quadratic function, where the rate of change of y would increase by an additional constant amount with each increase in x, the rate of change here is multiplicative.

Therefore, an exponential function of the form y = ab^x appears to be the best fit for the data, with the base b being 2 since the y-values double when x increases by 1, starting from y=3 when x=0. This suggests the function that best fits the given points is y = 3 * 2^x.

User SammyK
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3.4k points