No.050 Inverse Proportion Table

POINT

For inverse proportion, y = a/x. Multiply any known pair of x and y values to find a = xy, then complete the table.

Example

y is inversely proportional to x. Answer the following questions.

Express y in terms of x.

Find the values of A〜D.

x	-3	-2	-1	0	1	2	3	…	6
y	A	-3	B	×	6	3	C	…	D

Practice

y = a/x · a = xy

y is inversely proportional to x. Answer the following questions.

Express y in terms of x.

Find the values of A,B.

x	-4	-2	-1	1	2	4
y	A	-3	-6	6	3	B

y = 6/x; A = −3/2; B = 3/2

Use a = xy and y = a/x.

y is inversely proportional to x. Answer the following questions.

Express y in terms of x.

Find the values of A,B.

x	-6	-3	-2	2	3	6
y	-2	A	-6	6	B	2

y = 12/x; A = −4; B = 4

Use a = xy and y = a/x.

y is inversely proportional to x. Answer the following questions.

Express y in terms of x.

Find the values of A,B.

x	-8	-4	-2	2	4	8
y	A	-2	-4	4	2	B

y = 8/x; A = −1; B = 1

Use a = xy and y = a/x.

y is inversely proportional to x. Answer the following questions.

Express y in terms of x.

Find the values of A,B.

x	-5	-2	-1	1	2	5
y	-2	A	-10	10	B	2

y = 10/x; A = −5; B = 5

Use a = xy and y = a/x.

y is inversely proportional to x. Answer the following questions.

Express y in terms of x.

Find the values of A,B.

x	-12	-6	-3	3	6	12
y	-1	-2	A	B	2	1

y = 12/x; A = −4; B = 4

Use a = xy and y = a/x.