Let x equal the age, in human years, for a dog that is 2 years old or older.
For each of your chosen breeds, write an expression to model its age in dog
years. [Hint: Use (x - 2) in each expression.]
These are the dog years:
2yrs: 23 yrs old
3yrs: 27 yrs old
4yrs: 31 yrs old
5yrs: 35 yrs old
.....Now I'm having trouble writing the expression's ?? Make since?
Note that y increases by 4 when x increases by 1. So, the slope is 4.
That should help.
We came up with the following example:
24+[5(z)]
----------
x-2-y
24+10=34
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4-2=2 2-1=1
x=34
This would be for a 4 year old med. size dog.
In other words...
24+10=34
-----------
1
34/1=34
x=34
Not sure if that's the proper way to write the equation but I'd love to hear what others came up with.
this is hard... i have the same problems
To write an expression to model the age of a dog in dog years, we can use the given information that a dog ages 4 years for every human year after the age of 2.
Let's call the dog's age in human years x.
For a 2-year-old dog, we can start by subtracting 2 from x (since the dog ages 0 dog years during the first 2 human years) and multiplying the result by 4 (since the dog ages 4 dog years for every human year after 2):
Expression for a 2-year-old dog: (x - 2) * 4
For a 3-year-old dog, the calculation is the same:
Expression for a 3-year-old dog: (x - 2) * 4
Similarly, for a 4-year-old dog:
Expression for a 4-year-old dog: (x - 2) * 4
And for a 5-year-old dog:
Expression for a 5-year-old dog: (x - 2) * 4
In general, for any dog older than 2 years, the expression to find the dog's age in dog years would be: (x - 2) * 4.
Note that this expression assumes a constant aging rate of 4 dog years for every human year after 2, which may not be true for all dog breeds.