Need help !! What is the slope passing through 2,-1 and 5,-7
A). y+1=-2(x-2)
B). y+7=-2(x-5)
C). y-1=-2(x+2)
D). y -7=-2(x+5)
E). y-5=-2(x+7)
F). y-2=-2(x+1)

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

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Which of the following is true for the relation f(x)=2x^2+1