What is the equation of the line in the slope intercept form

y = x - 100

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m =

with (x₁, y₁ ) = ( 0, - 100) and (x₂, y₂ ) = (100, 0)

m = = = 1

The line crosses the y- axis at (0, - 100) ⇒ c = - 100

y = x - 100 ← equation of line

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