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Functions and Graphs Drill 2: Calculator-Permitted Section

Calculator use is allowed on these questions, so use it wisely. Answers and explanations can be found on
this page.

6 .If   f   (x) =    ,  what    is  the smallest    possible    value   of  f   (x) ?

A) 0

B)

C) 1

D) 2

10.

x y

–3 –7

–1 –3

2 3

Based   on  the chart   above,  which   of  the following   could   express the relationship    between x

and y   ?

A) y    =   x   −   4

B) y    =   2x  −   1

C) y    =   2x  +   2

D) y    =   3x  −   3

13 .Line    l   contains    points  (3, 2)  and (4, 5). If  line    m   is  perpendicular   to  line    l,  then    which   of

the following   could   be  the equation    of  line    m   ?

A) x    +   5y  =   15

B) x    +   3y  =   15

C) 3 x  +   y   =   5

D) −5x  +   y   =   

18 .If  f(x)    =   2x^2    +   4   for all real    numbers x,  which   of  the following   is  equal   to  f(3)    +   f(5)    ?

A) f(4)

B) f(6)

C) f(10)