Exercises: Interpret Key Features of Graphs

Work through each section in order. Show your work where indicated.

Grade 9·20 problems·~30 min·Common Core Math - HS Functions·group·hsf-if-b-4

Work through problems with immediate feedback

Recall / Warm-Up

The function $f$ has these values: $f(1) = 5$ , $f(2) = 8$ , $f(3) = 11$ . What can you say about $f$ on the interval $[1, 3]$ ?

The function is positive on $[1, 3]$ only if the values are getting larger.

The function is increasing on $[1, 3]$ because the output grows as the input grows.

The function is positive on $[1, 3]$ because all values are greater than zero.

The function is neither increasing nor positive because we don't have a formula.