Mathematics
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OpenStudy (destinyyyy):
Need a refresher on a few problems..
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OpenStudy (destinyyyy):
Find and simplify the difference quotient f(x+h)-f(x) over h , h=/0 for the given function.
f(x)=x^2 +4x+5
OpenStudy (destinyyyy):
I got 2x+h+4.
OpenStudy (destinyyyy):
(2,5) perpendicular to the line y-1/6x +8
OpenStudy (destinyyyy):
I got y=-1/6x -17/6
OpenStudy (destinyyyy):
@IrishBoy123
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OpenStudy (irishboy123):
post/scan/link/draw the original question if you can, pls.
then i can try help :p
OpenStudy (destinyyyy):
OpenStudy (irishboy123):
for perpendicular lines, following general equation \(y = mx + c\). we know that \(m_1 m_2 = -1\)
OpenStudy (destinyyyy):
Yeah..
OpenStudy (irishboy123):
yeah....
work it from there
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OpenStudy (destinyyyy):
y-5= -1/6(x-2)
OpenStudy (superdavesuper):
Note what is posted: m1*m2=−1
so -1/6 is not the right slope....
OpenStudy (destinyyyy):
Oh my gosh -.-
OpenStudy (destinyyyy):
Okay starting over now..
y-5=-6/1(x-2)
OpenStudy (destinyyyy):
Answer- y=-6x+17
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OpenStudy (superdavesuper):
correct :)
OpenStudy (destinyyyy):
Okay. Cannot believe I did that
OpenStudy (destinyyyy):
Next question..
OpenStudy (destinyyyy):
Use the graph of the function f, plotted with a solid line, to sketch the graph of the given function g.
g(x)= -f(x+2)-2
y=f(x)
OpenStudy (destinyyyy):
I know -f causes it to be flipped.. But I cant remember if (x+2) is vertical or horizontal.. I think horizontal :/
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OpenStudy (destinyyyy):
OpenStudy (superdavesuper):
|dw:1449179210336:dw|
make sense?
OpenStudy (destinyyyy):
Uh no
OpenStudy (destinyyyy):
Are you saying (x+2) is the vertical shift?
OpenStudy (superdavesuper):
|dw:1449179417456:dw|
notice the expression x+2 will just move everything sideway by +2