Question

find the vertex: y=5x²-3x+2

Answer 1

first coordinate of vertex is
\[-\frac{b}{2a}=-\frac{-3}{2\times 5}=-\frac{3}{10}\] to find the second coordinate replace x by
\[-\frac{3}{10}\] and see what you get

Answer 2

oopos

Answer 3

(3/10, 31/20)

See graph at

http://www.wolframalpha.com/input/?i=y+%3D+5x%C2%B2+-+3x+%2B+2

Answer 4

\[\frac{3}{10}\] i was off by a minus sign, sorry