Question

Consider the Quadratic function f(x) = x² - 2x - 24.

Its vertex is (
Its largest x-intercept is x =
Its y-intercept is y
"
instructor what is the vertex?

Answer 1

Explanation:

= (x-6)(x+4) Shows largest x-intercept or 'zero') to be ' 6 '

vertex 'x' value is in the middle between 6 and -4 at x= '1'

putting in '1' in the equation shows y = -25

so vertex = (1,-25)

Vertex is the lowest point on this bowl shaped parabolic graph

y intercept occurs when x = 0

put in x= 0 to find y axis intercept = -24