Pre calc question

Question

Let f (x) = 2x - 4. Find an equation of the secant line containing (5, f(5)) and (6,, f(6))

Answer 1

The two points are (5, 6) and (6, 8)

Use two-point form:

(y - 6) / (x - 5) = (8 - 6) / (6 - 5)