Question

Which is the equation of the function graphed? My answers to the questions is below, I just want someone to check them for me.
http://static.k12.com/calms_media/media/242500_243000/242870/1/eef657b54e3d49e0d2ddbd49bb9c1d12257d8495/VHS_ALG_L3_S2_01_16_UTQ4v1.gif
A.
f(x) = |x + 4|







B.

f(x) = |x – 4|








C.
f(x) = |x| + 4







D.

f(x) = |x| – 4

Answer 1

I picked A.

Answer 2

Which relationship shows a quadratic variation?
A. http://static.k12.com/calms_media/media/240500_241000/240937/1/a0732b263a31d8f141f835065092d3fbfb657eb2/01_15_UT_08_ad.gif
B. http://static.k12.com/calms_media/media/240500_241000/240941/1/dd227b64d782cfa606ecd0639d5e6ca0a8f711b4/01_15_UT_08c.gif
C. http://static.k12.com/calms_media/media/240500_241000/240936/1/124fe2cfa2b1be80144eae6d3e8c379c3c20cd31/01_15_UT_08_ab.gif
D. http://static.k12.com/calms_media/media/240500_241000/240939/1/e8ec015c595e04f0533790ce362005e4a77e80cd/01_15_UT_08a.gif

Answer 3

I picked C for that one.

Answer 4

Which relationship shows an inverse variation?
A. http://static.k12.com/calms_media/media/240500_241000/240946/1/eeefe42c49bff092f1f85fc48196b5dd7bd9fe5b/01_15_UT_10a.gif
B. http://static.k12.com/calms_media/media/240500_241000/240947/1/9f3a14146cc4f103f555b129d88b54990c7f1101/01_15_UT_10b.gif <---My choice
C. http://static.k12.com/calms_media/media/240500_241000/240945/1/f0db5c2b1affaa99149a82c8926da599c16d9f0c/01_15_UT_10_bd.gif
D. http://static.k12.com/calms_media/media/240500_241000/240942/1/0870809f87bef17b933160aaab3b593ea4e573b3/01_15_UT_10_ac.gif