On Figure 2.73, mark lengths that represent the quantities in parts (a)(e). (Pick any , with > 0.) (a) a + (b)

On Figure 2.73, mark lengths that represent the quantities in parts (a)–(e). (Pick any ℎ, with ℎ > 0.)

(a) a + ℎ 

(b) ℎ 

(c) f(a)

(d) f(a + ℎ)

(e) f(a+ℎ)−f(a)

(f) Using your answers to parts (a)–(e), show how the quantity

f(a + ℎ) − f(a)/ℎ can be represented as the slope of a line on the graph.

a f(x) Figure 2.73 X