The slope at point a of the graph given below is:

Explanation:

The slope of a graph at a point can be calculated from the tangent to the graph at that point, and it is given as

where

is the increment in the y-variable

is the increment in the x-variable

From the figure we see that in this case:

So, the slope at point A is

i wanna say it’s between b and d, leaning more towards b.

no sign of dia of fuel cell