If the function h is defined by h(x) = h(x - 1) - x + 3 and h(3) = 4, what is the value of h(6)?
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Official Explanation
h(3) = 4.
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I like this question!
can you explain more?
thanks!
Amazing
finally understood this
this pattern comes up frequently
thanks for the answer
thanks, this was helpful. took me a sec to realize you work upward from h(3).
same, I kept trying to go backward from h(6) for some reason
you can't really go backward tho right? since h(3) is given just build up
This one took me a bit. The "- x + 3" part is what throws me off, I kept messing up my arithmetic. Ended up with -2 but honestly wasn't confident.
the minus x term changes each step so you gotta be careful, easy to slip
fr the signs get messy. took me two tries
What it tests
Your ability to manipulate linear and quadratic expressions, substitute unknowns, and solve equations under time pressure.
Common trap
Losing a sign when moving terms across the equals sign, or dividing both sides by a variable that could equal zero.