What is the axis of a graph used for? Select all that apply.

a way to locate data
a stopping point for the data that can fit on the graph
a starting point with equal intervals that follow
a scale to plot data

the supermassive black hole is in the middle of the galaxy.

the answer is 100% density i've answered this question before and done the quiz myself.

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.