Consider the function: f(x)=x^2-4x-12it's vertex is: it's largest x-intercept is x=_.it's y-intercept is y=_.

f(x)=x^2-4x-12

factor

(x-6) (x+2)

The zeros are at 6, -2

to find the vertex find the axis of symetry

the axis of symmerty is at (-2+6)/2=4/2 =2

x=2  

to find the y coordinate, put it into the equation

y =2^2 -4(2) -12

 = 4-8-12

= 4-20

= -16

vertex (2,-16)

largest x intercept  x=6

y intercept -12

4

step-by-step explanation:

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers