What is the slope of (5,2) and (-6,2)

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

How do i do this activity, is appreciated