Question

consider the graph of the function f (x) = x2 − x − 30 . (a) find the equation of the secant line joining the points (−4, −10), and (6, 0).

Answer 1

Explanation:

Remember a secant line is composed of two points and their slopes.

Meaning that to find a secant line , just find the slope between the two points and use one of the points in point slope form.

Slope is

`(10)/(10) = 1`

So our equation of the secant line

`y =(x + 4) - 10`

`y = x - 6`