Question 10555: hi i really need your help and preferably within the next 15 minutes. i have test tomorrow and i am totally lost when it comes to piecewise functions. i do not know where to begin in those stupid problems! i reall need you help. here's a sample problem that i'm stuck on.
{3+x x<0
{x2(xsquared)+1 x>_(more than or = to) 0
really sorry about the poor typing on that one. please give me some feedback as soon as possible! thanks.
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! Whether or not you can actually get help with something on Sunday night when you are "TOTALLY lost", it sounds like you waited too long to get help!! Next time, better ask SOONER!!
This graph will be the straight line y=3+x, but ONLY graph the LEFT half of the graph up to the y-axis. This straight line should have a y-intercept at (0,3) and a slope of 1. It should go right up to the y-axis, and the y-intercept should be an open circle.
The second half of the graph will be the right half of the parabola y=x^2+1, which has a y-intercept at (0,1) with a solid point, and then curve upward to the right side. The two halves of the graph do NOT connect.
If I knew more about graphing in this algebra.com system, I could probably graph it for you, but hey, . . . it's Sunday night for me too!!
R^2 at SCC
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