Answer:
C. green is not a function, red is a function
Step-by-step explanation:
A curve does not describe a functional relationship if a vertical line crosses it in more than one place. Clearly the y-axis crosses the green curve in 2 places, so it is NOT a function.
There is a very steep section at x=10 on the red curve. It we assume it is simply "very steep" and not "vertical", then the red curve IS a function. If you assume that short section is vertical, then the red curve is not a function, either. My choice is to go with "very steep," not "vertical."
My conclusion is that green is not a function; red is a function.
$4.90 Each cake cost 0.70$ so 7x7=49 add the zero and move decimal one place to left
= 4.90$
Answer:
x = 4
Explanation:
Since segment DE is parallel to AC, we can use Thales theorem and write the following equation:

Then, we can solve for x if we cross multiply as:

Therefore, the value of x is 4.
Answer:

Step-by-step explanation:
Given

Required
The x coordinate of the vertex
Using the general form:

The x coordinate is:

In 



So, we have:




