Answer:
a. Vertex = (2.5,-12.25)
b. y-intercept = (0,-6)
c. x-intercept = (6,0) ; (-1,0)
Step-by-step explanation:
a.
Your equation is written as:

The easiest way to find the vertex is writing the equation this way:

Being the vertex (h,k)
So first complete the square

Vertex : (2.5,-12.25)
b.
To find the y-intercept you need to replace the equation when x = 0 and get y

c.
To find the x-intercept you need to replace the equation when y = 0 and get x

Given the function s(t) = -9 -3t, differentiating the function gives the instantaneous velocity.
s’(t) = -3
This means that the velocity is not a function of time and is therefore constant. The velocity at t = 8 ( or any time for that matter) is -3 units/time.
(not sure if you needed help with inserting an actual pdf or a picture) so you go to input your question like you did, but before you submit, click on the question bar where you were typing. Then it will show you your question and other little things to the left hand corner on the bottom. Click on the paper clip and then you can insert a picture. (if you already knew that and just wanted to insert an actual pdf file I don't think that you can do that but you can take a screenshot of it and then just insert that
So this one is pretty easy actually when x= a number you automatically know it'll be a vertical line cutting through the x axis. So for this problem (x=5) the line will be vertical and cut through the x axis. Hope this helps!
Answer:
BA/YX=BC/YZ=AC/XZ
Step-by-step explanation:
SINCE,
ABC AND XYZ ARE EQUILATERAL TRIANGLE
ALL THREE SIDES ARE EQUAL