Answer:
The axis of symmetry is at x=-2
Step-by-step explanation:
The axis of symmetry, h , is found at
h = -b/2a where a and b are the coefficients of the equation in standard form
y = ax^2 +bx +c
y = x^2 +4x+5
a =1 b=4 c=5
Then
h =- 4/2(1)
= -2
The axis of symmetry is at x=-2
A normal density curve is symmetrical
6.666666 and so on so about 7
Answer:
x=4
Step-by-step explanation:
Since AZ is half of AD. If AD=24, then AZ=12.
And the equation for AZ is 2x+4.
So 2x+4=12.
Subtract 4 on both sides: 2x=8.
Divide by 2 on both sides: x=4.
Hope this helps!