6- Refer to the graph below: Write an equation for the tangent line through x = -1 and x = 7.
7- Given the graph of a function below, use interval notation to describe the solutions to f(x) < 0.
Describe the sign of this function in a sign chart.
(-1, 0)
(3, 0)
(0.436, 49.31)
(0.345, -61.64)
(1, 63.94, -90.081)