SOLUTION: I'm trying to understand this problem from my SAT book. It says to Find h(4)-h(1) It tells me the answers are h(4)=13 and h(1)=8 and then 13-5=5 but I don't understand how it g

Question 423419: I'm trying to understand this problem from my SAT book. It says to
Find h(4)-h(1) It tells me the answers are h(4)=13 and h(1)=8 and then 13-5=5 but I don't understand how it get 13 and 8.
Thanks

Answer by jsmallt9(3758) (Show Source): You can put this solution on YOUR website!
The problem must have given you some information about h(x). Usually this information is in the form of a formula (like ) or in the form of a graph. Without this information it is impossible to provide a specific answer to your question.

If you were given a formula like
then

and

etc.

If you were given a graph then for h(4) you look for the point on the graph where x = 4. You figure out what the y coordinate of that point is and that is h(4). For h(1) you look for where the x = 1, etc.
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