Answer:
f(-1)=3
Explanation:
The function f(x) is graphed on the coordinate plane.
It is given that a line passes through the points (2,-3) and (-1,3).
We need to find the value of f(-1). It means we need to find the value of function at x=-1.
If the graph of a function f(x) passes through a point (a,b) where a and b are real numbers, then the value of function at x=a is b.

The graph of function f(x) passes through the point (-1,3), so

Therefore the value of f(-1) is 3.