Answer
Increasing the y coordinate in cell B3, the slope:
- remains negative, but less steep (if we increase the number so $-1 < B3 < 2)$ ,
- becomes 0 if we change it to 2,
- becomes positive if we change B3 so that $B3 > 2$
Work Step by Step
Slope of the line $y=mx+b$ is defined as
$m=\displaystyle \frac{\Delta y}{\Delta x} =\displaystyle \frac{Rise}{Run}$,
Currently, x increases by 2 units (from 1 to 3),
and y decreases by 3 units (from 2 to -1).
So, $\displaystyle \quad m=\frac{-3}{2}, \quad$ the slope is negative.
We can increase the B3 cell (the y coordinate of second point) so
it remains negative, but less steep (if we increase the number so $-1 < B3 < 2)$
it becomes 0 if we change it to 2,
it becomes positive if we change B3 so that $B3 > 2$
