Answer:
Yes it is
Step-by-step explanation:
y=-9x means that for every x value, the y value decreases by 9, so it is proportional because the value of y decreases the same amount each time. For example, if x=1, y=-9. If x=5, y=-45, and so on.
Answer:
How to do that it's a trick question you leave it like that.
Step-by-step explanation:
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Answer:
See below. The answer is incomplete, I couldn't post it.
Step-by-step explanation:
Considering a function 
, it is said to be discontinuous when it has a hole or breaks, it means places where 
cannot be evaluated. For example, when the denominator equals to 0, it is not defined.
Answer:
8. 0
9. undefined
Step-by-step explanation:
8. 0
> because the y variable is the same for all x-values, this is a horizontal line. Horizontal lines have a slope of 0.
> <em>Thinking of slope as rise over run: we will always rise 0, and run __ from any two points--0 divided by any number is always 0</em>
9. undefined
> because the x variable is always the same, no matter what y variable we graph, we will have the same outcome. So, this would look like a straight line, which have an undefined slope.
> <em>If you think of a slope as rise / run; if you go from any two points, there will be a 0 in the denominator--which is undefined</em>
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hope this helps!! have a lovely day :)
Answer:
5
Step-by-step explanation:
10/2 = 5
20/4 =5
30/6=5
40/8=5
