Question

y-0=2(x+8) and y+4=2/3(x-6)

Answer 1

Recall that, at this section, we have no ‘shortcut rules’ for derivatives, and must use the (limit) definition; f 0 (x) = lim h→0 f(x + h) − f(x) h But, in this case, f is unusually simple; f(x) = −3. This means f(anything) = −3