determine the input that produces the largest or smallest output( whichever is appropriate) state largest out put or smallest.

y=2x^2-4x+11 can someone walk me through this

Question

determine the input that produces the largest or smallest output( whichever is appropriate) state largest out put or smallest. 

y=2x^2-4x+11  can someone walk me through this

campbell_st · Answer

find the derivative and solve

$$dy/dx = 4x - 4$$   solve $$4x - 4 = 0$$   gives x = 1

substitute this into the original equation 

f(1) = 9    is the minimum value for the equation.... 

given that there is no defined interval then the max values occur at +.- infinity

anonymous · Answer

Thank you I was seeing how to work it and I got the same things.