What is the vertex of g(x) = 8x2 – 64x? (4, –128) (–4, –128) (4, –16) (–4, –16)

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

One integer is 5 more than another. their product is 104. find the integers

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.