What is the vertex?
f(x) = -x2 - 4x + 12.

vertex = (- 2, 16 )

Step-by-step explanation:

Given a quadratic in standard form : f(x) = ax² + bx + c ( a ≠ 0 )

Then the x- coordinate of the vertex is

= -

f(x) = - x² - 4x + 12 ← is in standard form

with a = - 1, b = - 4, thus

= - = - 2

To find the y- coordinate substitute x = - 2 into f(x)

f(- 2) = - (- 2)² - 4(- 2) + 12 = - 4 + 8 + 12 = 16

Vertex = (- 2, 16 )

step-by-step explanation: you take each of the numbers and divide by the amount then you take the range

oof cheaters cheat because they’re lazy that’s why i cheat xd

: )

step-by-step explanation: