Complete the square to re-write the quadratic function in vertex form: y=x^2-x-4

b=-1
b/2=-0.5x-0.5
=0.25
y=x^2-x+0.25 -0.25-4
y=(x-0.5)^2-0.25-4
y=(x-0.5)^2-4.25
y=(x+1)^2+4

y=(x+1)^2+4

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

Graph the linear equation find three points on the graph -x+2y=11