Back to Fit a function to data — Problem 3 · Task Set 6
Exercises: Fit a Function to Data
Work through each section in order. When choosing a model family, justify
from BOTH the scatter plot's form and the context's mechanism. When using a
fitted function, substitute or solve carefully and state every answer with
units. Remember: a fitted model captures the overall trend — it need not pass
through every point — and predictions far outside the data range
(extrapolation) are not as trustworthy as predictions inside it.
Grade 10·23 problems·~35 min·Common Core Math - HS Statistics and Probability·standard·hss-id-b-6a
Work through problems with immediate feedback
A
Warm-Up: Function Families and Evaluation
These problems review skills you already have from Algebra 1.
1.
A context supplies the linear function for the monthly cost (in dollars) of a phone plan after minutes of calls. Evaluate the function at minutes. Give the cost in dollars.