What is the vertical shift for the graph of f(x) = (x + 5)3 - 7? A. Down 5 B. Up 5 C. Down 7 D. Up 7 @jim_thompson5910 I found C, is that correct? I'm not so familiar with this formula equation.
Can I help?
This is awesome. Helping YOU!
So.... Parent function: f'(x)
f prime
SO is it C?
Yes
Vertical shift works that way
awesome sauce. you're sure? :D
Ex: f(x)=1 f(x)+1=1+
f(x)=1+1
so the outside number affects the whole equation.
The inside number, 5, shifts it vertically. The multplier is a scalaar multiplier, 3,
Do you want to think about it for it to make sense more?
Imagine this: f(x)=x
Bad example sorry
So you see: Since the -7 is outside, it affects the final number, which makes it move vertically.
So f(x)=whatever f(x)-7=always7 lower
The reason why the inside number does a horizontal shift: ex: f(1) the inside number will do this: f(1+b) which gives it a new x value which means, applied to the whole equation, the whole thing will be forced to "shift"
Is this making sense?
yes
ok Do you need more explanation?
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