The table display success rates for two different techniques used to memorize multiplication facts the table shows how many multiplication facts child memorized after the given number of days using either method a or method b what type of function should be used to model each method and method a 1 3 5 7 9 11 13 15 model b 7 3 1 1 3 7 13 21

I mean this is model a exponential equation quadratic or linear

1 answer

To determine the type of function to model the data for each method, we can analyze the success rates for both methods A and B. Let's examine the data provided for both methods:

Method A: Days: 1, 3, 5, 7, 9, 11, 13, 15 Success Rates: (Assuming the values are 1, 3, 5, 7, 9, 11, 13, 15 based on how you've written them)

This appears to represent a linear relationship, where the rate of increase is constant. In a linear model, you could use an equation of the form: \[ y = mx + b \] where \( m \) is the slope and \( b \) is the y-intercept.

Method B: Days: 1, 3, 5, 7, 9, 11, 13, 15 Success Rates: 7, 3, 1, 1, 3, 7, 13, 21

To analyze method B, let's look at the changes between successive values:

  • From 7 to 3: decrease of 4
  • From 3 to 1: decrease of 2
  • From 1 to 1: no change
  • From 1 to 3: increase of 2
  • From 3 to 7: increase of 4
  • From 7 to 13: increase of 6
  • From 13 to 21: increase of 8

The differences between the success rates are not constant, indicating that this data may not be linear. Instead, the differences between successive rates show a trend that increases, suggesting a possible quadratic relationship, where the second differences are constant.

Summary:

  • Method A: Linear relationship (can be modeled using a linear function).
  • Method B: Quadratic relationship (can be modeled using a quadratic function).

If additional details or values are provided for Method A or further analysis of Method B is needed, please let me know!