The answer to “In Exercises 2126, find the vertex and focus of the parabola and sketch its graph.” is broken down into a number of easy to follow steps, and 15 words. The full step-by-step solution to problem: 21 from chapter: 4.3 was answered by , our top Math solution expert on 03/09/18, 08:01PM. This full solution covers the following key subjects: . This expansive textbook survival guide covers 62 chapters, and 5693 solutions. Since the solution to 21 from 4.3 chapter was answered, more than 227 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: College Algebra , edition: 8. College Algebra was written by and is associated to the ISBN: 9781439048696.