A hotel entrance makes a parabolic arch that can be represented by a quadratic function, f (x) = - x^2 - 4x + 12, where y is the height of the arch and x is the distance from wall to wall in feet. What is the distance between the two walls of
the arch?
Success Criteria
1. Find the a, b, c
2. Graph the vertex
3. Graph the zeros
4. On the Graph, show the distance between the zeros
5. Reply to two people's posts
See jamboard for solutions

cjajxbabzbaha

step-by-step explanation:

dhwidjajxvahhzabduqhdb

do i do it on a graph?

step-by-step explanation:

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.