Question

givrn: y=2x^2 -4x+3 find the vertex

Answer 1

use \[-\frac{b}{2a}\]

Answer 2

in your example a = 2, b = -4 and
\[-\frac{-4}{2\times 2}=1\]

Answer 3

first coordinate of the vertex is 1, second is what y ou get when you replace x by 1, 2-4+3=1 so vertex is (1,1)

Answer 4

what would be the intercept

Answer 5

there is no x intercept since this is a parabola that faces up and the vertex is above the x - axis

Answer 6

y intercept

Answer 7

the y-intercept is what you get when you replace x by 0, which is the constant . in this case it is 3, so y-intercept is (0,3)