Which set of ordered pairs represents a function? {(1,-6),(-1, -2), (5, -1), (7,-2)}
{(5,-9), (-2,-7), (5, 4), (3, 7)}
{(4,-4), (-4,-4), (-7, -2),(-6,6)}
{(-4,7), (-4,-7), (-3,6), (-6, -6)}

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

Arrange these numbers from least to greatest 3/5 5/7 2/9