SOLUTION: I'm doing a practice test for algebra 2 and it asks you to graph this: Y<-x^2+3 Do you have to solve before graphing? I'm just very confused.

Algebra ->  Graphs -> SOLUTION: I'm doing a practice test for algebra 2 and it asks you to graph this: Y<-x^2+3 Do you have to solve before graphing? I'm just very confused.       Log On


   

Question 920372: I'm doing a practice test for algebra 2 and it asks you to graph this:
Y<-x^2+3
Do you have to solve before graphing? I'm just very confused.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
You would graph y+=+-x%5E2%2B3+ using a graphing calculator to get

+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+0%2C-x%5E2%2B3%29+

That graph is the boundary line and it should be a dashed line (I don't know how to do that on here). It is dashed due to the " < " sign. We are NOT including the boundary.

The "less than" sign then tells you to shade below the boundary line.

So to finish up, simply shade the region beneath the parabola

+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+0%2C-x%5E2%2B3%2Cy%3C-x%5E2%2B3%29+

The shaded region is shown in blue. Be sure to include the dashed boundary line as well.

Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim