Question

f(x) = x^2 +5
A) Slope of the secant line joining (1, f(1)) & (3, f(3))?
B) Slope of the secant line joining (1, f(1)) & (1+h, f(1+h))?
C) Slope of the tangent line joining (1, f(1))

Answer 1

Let's do A first.... can you give me:
f(1) = ???
f(3) = ????

Answer 2

(#) = x