The graph of is given. Use transformations to create a function whose graph is as shown. 1.)
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It looks like a reflection in the x axis (ie f(x)=-y) followed by vertical (1unit down) and horizontal (4 units back) shifts in the negative direction.
Originally Posted by VonNemo19 It looks like a reflection in the x axis followed by vertical (1unit down) and horizontal 4 units back) shifts in the negative direction. I'm trying to find the equation but I keep getting the wrong answer. Here's the answer if it helps. I just don't know how to get that answer. 1) y= -sqrt(-x^2-5x-4)-1 Help!
Last edited by yoman360; Jul 11th 2009 at 03:34 PM. Reason: To add more detail
Originally Posted by yoman360 I'm trying to find the equation but I keep getting the wrong answer. Here's the answer if it helps. I just don't know how to get that answer. 1) y= -sqrt(-x^2-5x-4)-1 Help! If I had . To flip it through the x axis I'd tack on a negative like so If I wanted to slide it to the left 4 units I'd add four to the variable like this If I then wanted it to shift down a unit I'd add a constant (subtract in this case) Get it?
Originally Posted by VonNemo19 If I had . To flip it through the x axis I'd tack on a negative like so If I wanted to slide it to the left 4 units I'd add four to the variable like this If I then wanted it to shift down a unit I'd add a constant (subtract in this case) Get it? Ok I get it now I'm gonna try and see if I can get the answer. I'll put a post to tell you if i get it right or not.
Originally Posted by yoman360 Ok I get it now I'm gonna try and see if I can get the answer. I'll put a post to tell you if i get it right or not. Sounds like a plan.
Ah I didn't get it right this is what i did! My answer: correct answer: what did I do incorrectly?
Originally Posted by yoman360 what did I do incorrectly? Since you gave it the old college try I'll do it for you.
Originally Posted by VonNemo19 Since you gave it the old college try I'll do it for you. Thanks! But I don't understand how you got that.
Originally Posted by yoman360 Thanks! But I don't understand how you got that. To flip it, I tacked on the negative. To slide to the left, i added 4 wherever i saw an x. to slide it down, i subtracted 1 from everything.
Originally Posted by VonNemo19 To flip it, I tacked on the negative. To slide to the left, i added 4 wherever i saw an x. to slide it down, i subtracted 1 from everything. Oh thanks thats why! I relected y axis then shifted to the left 1 then reflected x axis then shift down 1.
Originally Posted by yoman360 Thanks! But I don't understand how you got that. First 'move' it back 4 units by using for . Flip it by multipling by . 'Move' it down by subtracting .
Originally Posted by yoman360 Oh thanks. You're welcome. You can click them buttons whenever you feel like it yoman.
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