Math Topics

Language:

Back to Functions

Math Essentials>Functions>Activities 5

At the bottom of the page there is an interactive quiz.

At the bottom of the page there is an interactive quiz.

Activities 5

5.1)

Which of these functions are inversely proportional?

\begin{array}{l} p (x) & = \frac{1000}{x} \\ f (x) & = \frac{4 x + 1}{3} \\ g (x) & = \frac{x}{2} \\ h (x) & = \frac{2}{6 x} \end{array}

5.2)

Which of these function tables describe inversely proportional functions?

a)


$x$ -values	$y$ -values

1	700

2	350

3	$233.33$

4	175

5	140

6	$116.67$

7	100


$x$ -values	$1$	$2$	$3$	$4$	$5$	$6$	$7$

$y$ -values	$700$	$350$	$233.33$	$175$	$140$	$116.67$	$100$

b)


$x$ -values	$y$ -values

1	1200

2	600

3	400

4	320

5	240

6	200

7	150


$x$ -values	$1$	$2$	$3$	$4$	$5$	$6$	$7$

$y$ -values	$1200$	$600$	$400$	$320$	$240$	$200$	$150$

c)


$x$ -values	$y$ -values

1	10

2	20

3	40

4	80

5	160

6	320

7	640


$x$ -values	$1$	$2$	$3$	$4$	$5$	$6$	$7$

$y$ -values	$10$	$20$	$40$	$80$	$160$	$320$	$640$

d)


$x$ -values	$y$ -values

1	5

2	$2.5$

3	$1.67$

4	$1.25$

5	1

6	$0.83$

7	$0.714$


$x$ -values	$1$	$2$	$3$	$4$	$5$	$6$	$7$

$y$ -values	$5$	$2.5$	$1.67$	$1.25$	$1$	$0.83$	$0.714$

5.3)

Which of these graphs show inversely proportional functions?

Curved graph in first quadrant

(a)

Curved graph in first quadrant

(b)

Curved graph in first and second quadrant

(c)

Curved graph in first quadrant

(d)

You can find the solutions here.

Want to know more?Sign UpIt's free!

White arrow pointing to the Left

Inversely Proportional Functions

Want to know more?Sign UpIt's free!

White arrow pointing to the right

Functions from Text