Two quantities are proportional if there is a constant unit rate, or ratio, each time the values change.
No, see solution.
Practice makes perfect
In the given scenario, we know that to convert a temperature in degrees Celsius to degrees Fahrenheit, we multiply the Celsius temperature by 95 and then add 32^(∘). Let's use this to complete a table of values.
Degrees Celsius, x
0
10
20
30
Degrees Fahrenheit, y
0* 95+32= 32
10* 95+32= 50
20* 95+32= 68
30* 95+32= 86
y/x
32/0
50/10
68/20
86/30
Simplified Ratio
-
5
3.4
2.86
Notice that the simplified ratios are not all equal. This means that a temperature in degrees Celsius is not proportional to its equivalent temperature in degrees Fahrenheit.
