When a stock increases in value, you have a

increase

gain

decrease

loss

Gain.

Step-by-step explanation:

Suppose that you buy a given stock at $1 the share.

Now, if the stock increases (because of a given change, one example can e that the demand of a given object increases, and it impacts on a increase in the value of a given stock)

now, each share of the stock has a sligthlt bigger value, suppose it is $1.05

now, this means that the shares that you already have increased the value, so you have a gain of $0.05 per share.

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

55 degrees because 55+55=110 degrees