The figure below shows the graph of f and the graph of
its local linearization l_a(x) = 4 x - 1 at a .
(The local linearization is shown in blue.)

What is the value of

What is the value of

Use the linearization to approximate the value of

Is the approximation an under- or overestimate?

**under** or **over**.)

You can earn partial credit on this problem.