Suppose a parabola has an axis of symmetry at x=-1, a maximum height of 6, and passes through the point (-2, 1). Write the equation of the parabola in vertex form.

O y=-0.56(x-1)2 +6
Oy=-5(x+1)2 +6
O y=-2.5(x-1)2 +6
Oy=-2(x+6)-1

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

Identify the number 127 as a rational or irrational. explain