identify graph transformation
@dpaInc
@satellite73
@FoolForMath @imranmeah91 @LagrangeSon678
i'm having trouble still with this particular computer opening attachments.. sometimes it does, sometimes it doesn't ... sorry...:(
@sammy90210 have you ever used Geogebra?
no
http://geogebra.org/cms/en/installers When you get it installed I'll show you how it makes solving problems like these super-duper easy. :)
ok thanks! :)
@mathteacher1729 i have geogebra installed
@mathteacher1729 you there????
Yes, I'm here. I'm almost done setting it up.
oh ok :)
Ok all done. Download this file to your desktop, then open it in Geogebra. Click the words "linear" or "Absolute value & Sqrt" then drag the little sliders on the right. It will cause each type of function to move around. :) Lemmie know if you have any questions.
i dont understand what its doing??
this is what it looks like for me @mathteacher1729
Yup, it opened! so see the thing on the right that says "slope" and "y-intercept"? Drag the little point along the line to change those values. The graph will change as you do so.
so i keep moving them until the graph looks like one of my examples in the question?
Well you have to know what the translations are called. What slope makes the line perfectly horizontal? (left and right like this ___________ )
straight line ?
A linear function is always a straight line. Sometimes it is sloping upward / sometimes it is sloping downard \ sometimes it is vertical | sometimes it is horizontal - The slope of the line determines which is which.
for the first one would it be linear(x)=0x+7? also how do i make the lines bend like the second problem i have to do? @mathteacher1729
You got the first one! :D Now uncheck the box for "linear" and check the box for "Absolute value, square root"
oh i think i got it, it would be absolute value correct?
now the last one is tricky, its curved
lx+2l+0.1 for the second problem
ooh scratch off the +0.1
Yes, the one that's shaped like a "V" is the absolute value function.
how do i do the last problem, i don't know how to make it curve
@mathteacher1729
please help me with the last one!!!
Wait, you don't see the other function? What do you see now?
thats what i see @mathteacher1729
Yup that looks correct. The red function is the square root function. The "left & right" and "up and down" will... move it left and right and up and down. :)
right, but for the third problem , how do i make it curve??
It is already curved. That curve is the square root function.
how do i make it look like this?
like the red line is going the wrong way i guess
Yeah. I see.
how do i make it go the other way?
You have to make it sqrt(-x -h) (notice how the x is negative INSIDE the square root. You can do this by double-clicking on the red text on the left that says "sqareroot(x) = sqrt(x-h)+k"
thank you soooo much for all your help! :)
would it still be an absolute value?
i put down square root (x)= square root -x+3
It would be sqrt(-x+3)
sweet! thanks so much for all your help! i appreciate it! :)
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