Confused on where to start with finding the slope if you are given the secant line slope

Question

The table gives the slope of the secant line through the points P(1,-3) and Q(x,y) on the graph of f(x)=x²-4.

Q(x,y)	slope
(1.01,-2.98)	2.0
(1.1,-2.79)	2.1
(1.5,-1.75)	2.5
(2,0)	3.0

Which is the best estimate of the slope of the tangent line to the graph of f at the point (1,-3)

a. 1

b. 2

c. 5

d. undefined

Answer 1

Which point is closest to (1, -3)?