The set of all inputs for which our function is defined.Īnd over here, an input variable is x, so to think about, it's the set of all I have a piecewise defined function here,Īnd my goal is to figure out its domain and its range. I'm not sure if this is legit, but the range of the whole function is the union of sets (3, 7], (4, 8], (18, 66] or (3, 7] U (4, 8] U (18, 66]Īm I making myself clear? Please correct me if I made any mistakes. Now you can find the other clauses' y values the same way. What is the range of this clause? that would be 3 < y <= 7 or it can be expressed more 'mathy' as y or the range of the clause = (3, 7] (this means all real values from 3 to 7 (3 is not included, 7 included)) But anyway, for example, we had a piecewise function like this :įind the range of each clause separately.įor 2x+3, 0 < x <= 2, since this is a straight line (with a slope), you just need to find the y values for the endpoints. I don't know if you had done this or not by saying "guess and check for the domain". r/TeachingResources: A great place to share and discover teaching resources, such as demos, blogs, simulations, and visual aids.This answer is a year late, I'm also new to this topic, but I'll try to answer. r/Teachers: A place to discuss the practice of teaching, receive support from fellow teachers, and gain insight into the teaching profession. r/SpecialEd: Where special education teachers can discuss and share resources related to the education of students with special needs. r/ScienceTeachers: A place for science educators to collaborate on and contribute tips, ideas, labs, and curricula. r/HistoryTeachers: A place to discuss and share resources for history educators. r/HigherEducation: A place to discuss and share articles related to higher education. r/ELATeachers: A place for English teachers to share ideas and lessons and to brainstorm and collaborate on new curriculum. r/ECEProfessionals: A place for early childhood educators to learn, grow, and contribute as professionals. r/CSEducation: A place for computer science educators and education researchers. r/AustralianTeachers: A place for discussion for Teachers from Australia. r/ArtEd: A place for art educators to discuss the importance of art education and to share and collaborate on resources. r/AdultEducation: A place for adult educators to discuss tips and tricks to engaging an adult audience. r/Education: A place to discuss the news and politics of education. If you are having trouble multi-posting, send a message to the moderators and one of us can make you an approved submitter. Use your down vote if the resource submitted was not useful to you. Please reserve reporting for profane, or blatantly irrelevant content. It's okay to self promote on teaching resources, but we would love if you could also contribute other great resources that are not your own so that is not all that you are doing. only 1 out of every 10 of your submissions should be your own content." A widely used rule of thumb is the 9:1 ratio, i.e. But if that's all you ever post, or it always seems to get voted down, take a good hard look in the mirror - you just might be a spammer. "Feel free to post links to your own content (within reason). More filters will be made when the resources are submitted
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