would you call this the curves slider?

When in Photoshop, and on the Curves panel, would you call this the slider? (Attached.)

More like the Curves curve.

I call it just Curves :)

I like that, the 'curves curve'. The curves line? Writing technical how-tos can be hard.

Curves are much more efficient to modify color/contrast in an image. You will get better results than using "levels" slider. (graph)

this thread is addressing curves.

i juz call it "Control M" :D

Histogram, by any chance? No?