To determine whether a graph of a relation is also a function, shayla declared that the y axis is a vertical line and the counts numbers of times that the graph intersects the y axis. if a graph has exactly one y intercept, shayla concludes that the graph shows a function. in all other cases, she declared that it is not a function

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.