大象传媒

Reciprocal graphs

Graphs of the form \(y = \frac{1}{x}\), \(y = \frac{2}{x}\), \(y = \frac{3}{x}\), etc., are known as reciprocal graphs, and they all have a similar shape:

Reciprocal graphs showing y = 1 over x, y = 2 over x, y = 3 over x

\(\frac{1}{x} = blue\)

\(\frac{2}{x} = red\)

\(\frac{3}{x} = green\)

\(\text{x}\)-5-4-3-2-1012345
\(y = \frac{1}{x}\)-0.2-0.25-0.33-0.5-1No value10.50.330.250.2
\(y = \frac{2}{x}\)-0.4-0.5-0.67-1-2No value210.670.50.4
\(y = \frac{3}{x}\)-0.6-0.75-1-1.5-3No value31.510.750.6
\(\text{x}\)
-5
-4
-3
-2
-1
0
1
2
3
4
5
\(y = \frac{1}{x}\)
-0.2
-0.25
-0.33
-0.5
-1
No value
1
0.5
0.33
0.25
0.2
\(y = \frac{2}{x}\)
-0.4
-0.5
-0.67
-1
-2
No value
2
1
0.67
0.5
0.4
\(y = \frac{3}{x}\)
-0.6
-0.75
-1
-1.5
-3
No value
3
1.5
1
0.75
0.6