What is the best estimate of the instantaneous rate of change for the function f(x) = x at the point of (-2, -2)?

Question

1. 1/2
2. 2
3. 1
4. x

Answer 1

recall the slope-intercept form for this line.
y = 1x + 0

Answer 2

so is it X ?

Answer 3

No, it is 1

In y=mx+b the slope is m and the y-intercept is b.

Better review this some more.