ARCHITECTURE An architect models the floor, walls, and ceiling of a building with planes. To locate
one of the planes that will represent a wall, the
architect starts by marking off two points in the plane
that represents the floor. What further information can
the architect give to specify the plane that will
represent the wall?

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?