Question

Plsss help me
thanks

Answer 1

y = -3(x + 0.5)² - 45.25

Step-by-step explanation:

a = -3

b = -3

c = -47

h = -b/2a = -(-3)/2(-3) = -1/2

k = c - b²/(4(-3)) = -46 - (-3)²/(-12) = -45.25

f(x) = -3(x - (-1/2))² - 45.25

y = -3(x + 0.5)² - 45.25

Answer 2

ANSWER:
f(x)= -3(x+1/2)^2-181/4

Step-by-step explanation:
Find the vertex using the x=-b/2a formula, in the y=-3x^2-3x-46 equation, your b value is -3 and your a value is -3.
x=-(-3)/2(-3)
x= -1/2
then now that you know your X value, you plug in the value in the equation
y=-3(-1/2)^2-3(-1/2)-46
y= -181/4
Now you have your (x,y) point just plug it in to the formula. Remember that (h,k) is the same as (x,y). Your a value would be the -3 since it’s the value. Thereby the answer is

f(x)= -3(x+1/2)^2-181/4