A.

B. (–1, –1), (0, 0), (1, 1), (2, 8)

C.

D. (–1, 1), (0, 0), (1, 1), (2, 4)

Phoebe
2020-10-31
Answered

Which set of ordered pairs could be generated by an exponential function?

A.$(-1,-\frac{1}{2})$ , (0, 0),$(1,\frac{1}{2})$ , (2, 1)

B. (–1, –1), (0, 0), (1, 1), (2, 8)

C.$(-1,\frac{1}{2})$ , (0, 1), (1, 2), (2, 4)

D. (–1, 1), (0, 0), (1, 1), (2, 4)

A.

B. (–1, –1), (0, 0), (1, 1), (2, 8)

C.

D. (–1, 1), (0, 0), (1, 1), (2, 4)

You can still ask an expert for help

hesgidiauE

Answered 2020-11-01
Author has **106** answers

An exponential function has the property that the y-values are multiplied by some common factor a when x incresses by 1.

We note that ench set of ordered pairs contains -1, 0, 1, and 2 as x-values, which are increments of 1.

Let us next determine the ratio of each pair of consecutive y-values for each option.

Answer option A

Answer option B

Answer option C

Answer option Does

We note that the three ratios are only constant for answer option C and thus answer option C could be generated by an exponential function.

C.

asked 2021-03-02

1) In what way is the point unusual? Does it have high leverage, a large residual, or both?

2) Do you think that point is an influential point?

3) If that point were removed, would the correlation be- come stronger or weaker? Explain.

4) If that point were removed, would the slope of the re- gression line increase or decrease? Explain

asked 2021-02-11

Make a scatterplot of the data. Use the year on the horizontal scale and the number of ounces on the vertical scale.

Available Drink Sizes at a Convenience Store Year, Sizes Available (cm)

1973: 12, 20

1976: 12, 16, 20

1978: 12, 16, 20, 32

1983: 12, 16, 20, 32, 44

1988: 12, 16, 20, 32, 44, 64

2003: 12, 20, 32, 44, 64

2005: 20, 32, 44, 64

Available Drink Sizes at a Convenience Store Year, Sizes Available (cm)

1973: 12, 20

1976: 12, 16, 20

1978: 12, 16, 20, 32

1983: 12, 16, 20, 32, 44

1988: 12, 16, 20, 32, 44, 64

2003: 12, 20, 32, 44, 64

2005: 20, 32, 44, 64

asked 2020-11-10

Using the health records of ever student at a high school, the school nurse created a scatterplot relating $y=\text{}\text{height (in centimeters) to}\text{}x=\text{}\text{age (in years).}$

$\text{After verifying that the conditions for the regression model were met, the nurse calculated the equation of the population regression line to be}\text{}{\mu}_{0}=105\text{}+\text{}4.2x\text{}\text{with}\text{}\sigma =7\text{}cm.$
About what percent of 15-year-old students at this school are taller than 180 cm?

asked 2020-10-27

Which two of the four scatter plots have most positive correlation and closer to zero correlation

asked 2021-05-07

Given a scatterplot for a set of data, how can you draw an accurate trend line?

asked 2020-11-09

Two scatterplots are shown below.

Scatterplot 1

A scatterplot has 14 points.

The horizontal axis is labeled "x" and has values from 30 to 110.

The vertical axis is labeled "y" and has values from 30 to 110.

The points are plotted from approximately (55, 60) up and right to approximately (95, 85).

The points are somewhat scattered.

Scatterplot 2

A scatterplot has 10 points.

The horizontal axis is labeled "x" and has values from 30 to 110.

The vertical axis is labeled "y" and has values from 30 to 110.

The points are plotted from approximately (55, 55) steeply up and right to approximately (70, 90), and then steeply down and right to approximately (85, 60).

The points are somewhat scattered.

Explain why it makes sense to use the least-squares line to summarize the relationship between x and y for one of these data sets but not the other.

Scatterplot 1 seems to show a relationship between x and y, while Scatterplot 2 shows a relationship between the two variables. So it makes sense to use the least squares line to summarize the relationship between x and y for the data set in , but not for the data set in .

Scatterplot 1

A scatterplot has 14 points.

The horizontal axis is labeled "x" and has values from 30 to 110.

The vertical axis is labeled "y" and has values from 30 to 110.

The points are plotted from approximately (55, 60) up and right to approximately (95, 85).

The points are somewhat scattered.

Scatterplot 2

A scatterplot has 10 points.

The horizontal axis is labeled "x" and has values from 30 to 110.

The vertical axis is labeled "y" and has values from 30 to 110.

The points are plotted from approximately (55, 55) steeply up and right to approximately (70, 90), and then steeply down and right to approximately (85, 60).

The points are somewhat scattered.

Explain why it makes sense to use the least-squares line to summarize the relationship between x and y for one of these data sets but not the other.

Scatterplot 1 seems to show a relationship between x and y, while Scatterplot 2 shows a relationship between the two variables. So it makes sense to use the least squares line to summarize the relationship between x and y for the data set in , but not for the data set in .

asked 2021-05-16

Make a scatterplot for the data.

Length (mi) and Water Flow ($1000\text{}f\frac{{t}^{3}}{s}$ ) of rivers

Length: 2540, 1980, 1460, 1420, 1290, 1040, 886, 774, 724, 659

Flow: 76, 225, 41, 58, 56, 57, 68, 67, 67, 41

Length (mi) and Water Flow (

Length: 2540, 1980, 1460, 1420, 1290, 1040, 886, 774, 724, 659

Flow: 76, 225, 41, 58, 56, 57, 68, 67, 67, 41