Inequalities are the easiest thing ever at the moment. I mean, I completely understand them. When you absolute value, you set up two inequalities the first the same as the original, the second with the opposite sign and the opposite of the constant (in terms of +/-).
Now what I don't get is what we did on Friday. The whole domain and range thing threw me off. I never learned it last year, I must have missed that day or something because i'm completely lost. I know that your domain=x-values and your range=y-values. From the homework, I don't get how you decide if it is a function or not from a graph, and if it is a function, how do you find the domain and range??????
That is pretty much the just of my problem. I didn't learn it last year and it finally caught up to me. Anybody that can help with the domain and range thing, that would be amazing.
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Alaina,
ReplyDeleteIf it passes the vertical line test it is a function. You then identify which of my cases it falls under and follow those steps.