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30 QuestionsShow answers
  • Question 1
    30 seconds
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    Q.

    What type of pattern does a quadratic function have?

    answer choices

    add-add

    add-mult.

    mult.-add.

    constant second differences

    none

  • Question 2
    30 seconds
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    Q.

    What type of a pattern does a logarithmic function have?

    answer choices

    add-add

    mult-mult

    mult-add

    add-mult

    none

  • Question 3
    30 seconds
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    Q.

    What type of pattern does a logistic function have?

    answer choices

    add-add

    constant second differences

    mult-add

    mult-mult

    none

  • Question 4
    30 seconds
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    Q.

    Name the function:  y=abxy=a\cdot b^x  

    answer choices

    power

    exponential

    quadratic

    logarithmic

    logistic

  • Question 5
    30 seconds
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    Q.

    Name the function:  f(x)=3+7lnxf\left(x\right)=3+7\ln x  

    answer choices

    exponential

    power

    quadratic

    logarithmic

    logistic

  • Question 6
    30 seconds
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    Q.

    Name the function:  y=axby=a\cdot x^b  

    answer choices

    logarithmic

    power

    exponential

    logistic

    linear

  • Question 7
    30 seconds
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    Q.

    Name the function:  4201+72e.7x\frac{420}{1+72e^{.7x}}  

    answer choices

    logarithmic

    exponential

    power

    logistic

    linear

  • Question 8
    30 seconds
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    Q.

    What is  y\overline{y}  ?

    answer choices

    a. deviation

    b. residual

    c. average of y's

    d. regression equation

    a. and c.

  • Question 9
    30 seconds
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    Q.

             y "hat" is:    

    answer choices

    a. the residual

    b. the regression equation

    c. the deviation

    d. the predicted y value for each x

    b. and d.

  • Question 10
    30 seconds
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    Q.

    What is the correlation for the following Scatter Plot.

    answer choices

    Weak Positive

    No Correlation

    Strong Negative

    Weak Negative

    Strong Positive

  • Question 11
    30 seconds
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    Q.

    What is the correlation for the following Scatter Plot.

    answer choices

    Weak Positive

    No Correlation

    Strong Negative

    Weak Negative

    Strong Positive

  • Question 12
    30 seconds
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    Q.

    What is the correlation for the following Scatter Plot.

    answer choices

    Weak Positive

    No Correlation

    Strong Negative

    Weak Negative

    Strong Positive

  • Question 13
    30 seconds
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    Q.

    Given the following Scatter Plot, select the option that is most likely the r value.

    answer choices

    r=.27r=.27

    r=.862r=-.862

    r=.934r=.934

    r=.54r=.54

  • Question 14
    30 seconds
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    Q.

    Given the following Scatter Plot, select the option that is most likely the r value.

    answer choices

    r=.1r=-.1

    r=.981r=-.981

    r=.92r=.92

    r=.765r=.765

  • Question 15
    30 seconds
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    Q.

    What type of correlation (association)?

    The outside temperature and the amount of layers you wear.

    answer choices

    A) Positive correlation

    B) Negative correlation

    D) No correlation

  • Question 16
    120 seconds
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    Q.

    The scatter plot shows the number coffee shops in different cities and the number of violent crimes. Which of the following is NOT true?

    answer choices

    A) As the number of coffee shops increase, violent crimes appears to increase.

    B) The line of best fit (regression line) shows a positive correlation

    C) The data has a positive correlation coefficient

    D) An increase in coffee shops causes an increase in violent crimes

  • Question 17
    900 seconds
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    Q. Find the equation of the line of best fit for this table.
    answer choices
    y = -2.28x + 51.08
    y = 51.08x - 2.28
    y = 0.06x - 0.26
    y = -2.28x - 0.26
  • Question 18
    60 seconds
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    Q.

    Shown is a residual plot. How many negative residuals are there?

    answer choices

    5

    1

    3

    9

  • Question 19
    30 seconds
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    Q. What should a residual plot look like?
    answer choices
    Distinct Pattern
    Curve
    Random
  • Question 20
    60 seconds
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    Q. Residuals are . . . 
    answer choices
    possible models not explored by the researcher
    variation in the response variable that is explained by the model
    the difference between the observed response and the values predicted by the model
    data collected from individuals that is not consistent with the rest of the group
  • Question 21
    180 seconds
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    Q. Calculate the quadratic regression function for this table of values to the nearest tenth.
    answer choices
    f(x) =
     2x2 - 9x + 10
    f(x)=
     3x2 + 9x - 10
    f(x) =
     3.1x2 - 9.2x - 10.3
    f(x) =
    2.1x2 - 8.6x + 10.1
  • Question 22
    180 seconds
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    Q. The city of Sugar Land has been experiencing rapid growth. Determine an exponential model for the following data.
    answer choices
    y = 18, 718.26(1.13)x
    y = 1871826(1.13)x
    y = 187.1826(1.13)x
    y = 1.8718.26(1.13)x
  • Question 23
    30 seconds
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    Q.

    Use the following ordered pairs to determine the best regression model: Linear, Quadratic, Cubic, or Exponential?
    (0, 250), (1, 280), (2, 284), (3, 249), (4, 202)

    answer choices

    Linear

    Quadratic

    Cubic

    Exponential

  • Question 24
    30 seconds
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    Q.

     f(x)=451+15e1.3xf\left(x\right)=\frac{45}{1+15e^{-1.3x}}  Using the given function, what is the horizontal asymptote(s)

    answer choices

    y=0

    y=45

    y=15

    y=0 and y=45

  • Question 25
    30 seconds
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    Q.

     f(x)=451+14e1.3xf\left(x\right)=\frac{45}{1+14e^{-1.3x}}  Using the given function, what is the y-intercept?

    answer choices

    (0,3)

    (0,1)

    (0,15)

    (0,45)

  • Question 26
    30 seconds
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    Q.

    Find the value of c in the equation of the graphed logistic function:

    answer choices

    c=2c=2

    c=4c=4

    c=3c=3

    c=1c=1

  • Question 27
    30 seconds
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    Q.

     The function P(x)=50001+6e0.125xP\left(x\right)=\frac{5000}{1+6e^{-0.125x}}  represents the number of people in Indian Trail who are projected to regularly frequent Mr. H's new restaurant each week after his grand opening, where x is the number of weeks after the grand opening.  Approximately how many people are expected to regularly frequent Mr. H's restaurant 8 weeks after his grand opening?

    answer choices

    1,559

    5,002

    1,153

    3,281

  • Question 28
    10 seconds
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    Q.

    What type of function is this?

    answer choices

    logarithmic

    quadratic

    exponential

    Logistic

  • Question 29
    10 seconds
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    Q.

    What type of function is this?

    answer choices

    logarithmic

    square root

    exponential

    rational

  • Question 30
    10 seconds
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    Q.

    What type of function is this?

    answer choices

    quadratic

    absolute value

    linear

    exponential

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