Open QuestionFor each piecewise-defined function, find (a) ƒ(-5), (b) ƒ(-1), (c) ƒ(0), and (d) ƒ(3).See Example 2. ƒ(x)={2+x if x<-4, -x if -4≤x≤2, 3x if x>2
Open QuestionFor each graph, determine whether y is a function of x. Give the domain and range of each relation.
Open QuestionIn Exercises 11–26, determine whether each equation defines y as a function of x. |x|- y = 5
Open QuestionDetermine whether the three points are the vertices of a right triangle. See Example 3. (-4,3),(2,5),(-1,-6)