FlexiQuiz - Math Quiz Unit 3

1] Which of the following arrow diagram represents functions?

$math practice test on function$

(a), (e), (f)

(b), (d), (c)

(f), (d), (c)

2] Is the graph shown below that of a function?

graph of question 1

No

Yes

Insufficient information

3] Given the relation A = {(5,2), (7,4), (9,10), (x, 5)}.

Which of the following values for x will make relation a function? Select one:

7

9

4

4] Given f (x) = 3x + 7, find f (5).Select one:

15

22

42

5] Given g (a) = 2a - 4, find g (5x).Select one:

6

5x-4

10x-4

6 ] Use functional notation to describe the function displayed at the right.

f (x) = 2x

f (x) = x²

f (x) = x + 2

7] Is the relation depicted in the chart below a function?

X	0	1	3	5	3	9
Y	8	9	10	6	10	7

Yes

No

Cannot be determined from the chart.

8] Function f is defined by f(x) = - 2 x² + 6 x - 3

find f(- 2).

23

-23

32

9] Find the range of f(x) = -x² - 10

(o , -10]

(-infinity , 10]

(-infinity , -10]

10]Which of the relations below is a function? Select one:

{(1,1), (2,1), (3,1), (4,1), (5,1)}

{(2,1), (2,2), (2,3), (2,4), (2,5)}

{(0,2), (0,3), (0,4), (0,5), (0,6)}

Math Quiz Unit 3