Question

What is the minimum value and the range for this equation? f(x) = 2x^2 + 28x - 8

Answer 1

minumum value is the second coordinate of the vertex

Answer 2

first coordinate of the vertex of
\[y=ax^2+bx+c\] is \[-\frac{b}{2a}\] and the second coordinate is what you get when you plug in the first coordinate