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hali12
Group Title
Let f(x) = 4x +8. Write the rule for a new function as a vertical translation of f(x) three units down. Do not graph.
If you just give me the anwser I'll give u a medel
 2 years ago
 2 years ago
hali12 Group Title
Let f(x) = 4x +8. Write the rule for a new function as a vertical translation of f(x) three units down. Do not graph. If you just give me the anwser I'll give u a medel
 2 years ago
 2 years ago

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Frank1991 Group TitleBest ResponseYou've already chosen the best response.0
f(x)=4x+5
 2 years ago

tyteen4a03 Group TitleBest ResponseYou've already chosen the best response.0
The translation of a vertical function is f(x)  c, where c is the unit of translation. In this case, the function would become f(x) = 4x+8  3.
 2 years ago

Frank1991 Group TitleBest ResponseYou've already chosen the best response.0
But the 4 is the slope of the line and the 8 is the point where the line crosses the yaxis. Therefore, you only have to subtract 3 from the equation to obtain the new equation. and so the line is lowered by 3 units
 2 years ago

tyteen4a03 Group TitleBest ResponseYou've already chosen the best response.0
@Frank1991 That is exactly what f(x)  c means...
 2 years ago

Frank1991 Group TitleBest ResponseYou've already chosen the best response.0
dw:1349873197095:dw
 2 years ago

Frank1991 Group TitleBest ResponseYou've already chosen the best response.0
So b is the point where the equation crosses the yaxis. And if you change it by +1 the line just skips vertical up with 1.
 2 years ago

Frank1991 Group TitleBest ResponseYou've already chosen the best response.0
In your case it has to skip down with 3 units, so just subtract 3 units from your b (which is 8) you can check it with google (just type the equation is the search bar)
 2 years ago

estudier Group TitleBest ResponseYou've already chosen the best response.0
http://www.wolframalpha.com/input/?i=plot+4x%2B5%2C+4x+%2B8%2C+for+y+in+0..10
 2 years ago

hali12 Group TitleBest ResponseYou've already chosen the best response.0
you cant graph it.... is it 8?
 2 years ago
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