How do you determine the vertical asymptotes of rational functions algebraically without a graph?

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Write the fraction or mixed number and the decimal shown by the model

Which graph represents the equation y =4x