## anonymous 5 years ago givrn: y=2x^2 -4x+3 find the vertex

1. anonymous

use $-\frac{b}{2a}$

2. anonymous

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

3. anonymous

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)

4. anonymous

what would be the intercept

5. anonymous

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

6. anonymous

y intercept

7. anonymous

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)