Y-intercept: x= 0

0^2 +2(0)- 3

y= -3

X-intercept: y=0

factor,

x^2+2x-3

(x -1) (x+3)

x= 1 and x = -3

For the vertex, the x value will always be exactly between the two x- intercepts. So, the x value for the vertex will be -1. Now, plug in -1 into the equation for the y value. You get -4.

Therefore, the vertex is (-1, -4)

Hope this helps :)

y = x² - 4x - 2 Parabola is in common variety ax² + bx + c, the placement a = a million, b = - 4, c = - 2 Equation of the axis of symmetry is x = - b/2a = - - 4/2(a million) = 2 this is the x-coordinate of the vertex. fixing the function for this cost components the y-coordinate. y = 2² - 4(2) - 2 = 4 - 8 - 2 = - 6 Vertex is (2, - 6).