At a concession stand at a high school football game, the owner notices that the relationship between the cost of a hotdog and the number of hotdogs sold is linear. If the price is $1.00 per hotdog, then 650 hot dogs are sold each night. If the cost is $1.50 per hotdog, then only 475 are sold each night.
1. Write the given information as points in the form (cost per hotdog, quantity sold).
2. Write a linear equation that passes through these two points.
3. Use your equation to predict the number of hotdogs that would sell if the price changed to $1.70 per hotdog.
Given n(x)= square root 18-6x State domain and range of graph using interval notation. Then state whether the graph is a function.