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Barrelracing
 one year ago
Given the function f(x) = x2 and k = –3, which of the following represents a vertical shift?
a) f(x) + k
b) kf(x)
c) f(x + k)
d) f(kx)
Barrelracing
 one year ago
Given the function f(x) = x2 and k = –3, which of the following represents a vertical shift? a) f(x) + k b) kf(x) c) f(x + k) d) f(kx)

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SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1you don't need to know the value of k to answer this question. you know that when you have y=f(x) you get certain ycoordinates, but when you add k (like this: y=f(x)+k) then you know that for each xcoordinate you get an output +k greater than in a case of y=f(x), and that means that f(x)+k is a shift up)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1(for k<0. tho' , like in your case where x=3, it is a shift down)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1For any parent function y=f(x), the rule is:  VERTICAL SHIFTS y=f(x)+c shift c units up y=f(x)c shift c units down  SIDE SHIFTS y=f(xc) shift c units to the right y=f(x+c) shift c units to the left 
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