Find the range of f(x)=-x+4 for the domain (-3 -2 -1 1) A.{7,6,5,3} B.{7,6,5,4} C.{-7,-6,-5,-4}

Question

Find the range of f(x)=-x+4 for the domain (-3 -2 -1 1)

A.{7,6,5,3}

B.{7,6,5,4}

C.{-7,-6,-5,-4}

D.{-7,-6,-5,3}

0

Answers ( No )

    0
    2021-09-11T08:27:29+00:00

    If we substitute x = -3  in f(x) we have –3 + 4 = 7 which is one element in the range.

    Doing the same calculation  for x , -2, -1 and 1 we get  6, 5 and 3

    Answer is choice A

    0
    2021-09-11T08:27:39+00:00

    f(-3) = –3 +4 = 3+4 =7

    f(-2) = –2 +4 =2+4 =6

    f(-1) =–1 +4 = 1+4 =5

    f(1) = -1 +4 =3

    Range :{3,5,6,7}

    Choice A

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