(HELP ASAP ITS A TEST) Given the graph shown, which line contains point B?

y = 2x + 1

Step-by-step explanation:

Graphing that line, you know that the y-intercept is 1, so you can plot a point at (0,1). Then, knowing the slope (which is 2), you can break it down to:

rise

run

That is also the same as 2/1, meaning go up 2 units, and right 1 unit for each point. However, going backwards, as in down 2 units, and left 1 unit, you can see the other half of the line. By doing so, your first point will be (-1,-1), or point B. So, y = 2x + 1.

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0