TEK 2A
1 answer:
The graph which best represents a function with a domain of all real numbers less than or equal to 6 is; Choice A as represented in the attached image.
<h3>Which graph represents the given domain?</h3>According to the task content;
- The domain of the graph which means the set of possible values of x is less than or equal to 6.
On this note, it follows that the graph which is characterized by the given domain is as attached.
Read more on graphs;
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If one of our zeros is 4, then the factor is x-4. If the second zero is 5i, then the conjugate root theorem says there HAS to be a root that is -5i. So our 3 factors are (x-4)(x+5i)(x-5i). We will FOIL out these factors to get the polynomial. Let's start with the ones that contain the imaginary numbers. Doing that mutliplication we get x^2-25i^2. i^2 is equal to -1, so what that expression simplifies down to is 
. Now we will multiply in that last factor of (x-4): 
. FOILing out we have 
. There you go!