The equation shows this situation is y = 2x + 5
Solution:
Given that,
The costs for going to a dog beach are $7 for 1 dog, and $2 for each additional dog
Let "x" be the number of dogs
where x is greater than or equal 1
Cost y is $7 for the first dog and $2 for each of the other dogs
Therefore,
y = 7 + 2(x - 1)
x - 1 means the additional dogs
Therefore,
y = 7 + 2x - 2
y = 2x + 5
Thus the equation is found