What is the vertex of the quadratic function f(x) = (x – 3)(x - 2)?
I

(2.5, -.25)

Step-by-step explanation:

First find the zeros

(x – 3)(x - 2) =0

x-3 =0   x-2=0

x=3   x=2

The zeros are at 3 and 2

Find the middle of the zeros

(5)/2 = 2.5

The x coordinate of the vertex is at 2.5

To find the y coordinate , substitute x into the equation

f(2.5) = (2.5-3) *2.5-2)

        = -.5 (.5)

        = -.25

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

i think it would be 42cm