(Solved): (1 point) The figure below shows f(x) and its local linearization at x=a,y=2x5. (The local l ...

(1 point) The figure below shows $$f(x)$$ and its local linearization at $$x=a,y=2x?5$$. (The local linearization is shown in blue.) What is the value of $$a$$ ? $$a=$$ What is the value of $$f(a)$$ ? $$f(a)=$$ Use the linearization to approximate the value of $$f(5.4)$$ $$f(5.4)=$$ Is the approximation an under- or overestimate? (Enter under or over.)