4x^2+4y^2=64 what are the domain and range
1 answer:
Use a graphing tool and you'll see a circle form. This circle has a center of (0,0) and radius of 4. Side note: this equation is equivalent to x^2+y^2 = 16 after you divide everything by 4
Looking at the graph, the smallest x can be is -4. The largest x can be is 4. So the domain in interval notation is![[-4,4]](https://tex.z-dn.net/?f=%5B-4%2C4%5D)
Similarly the range in interval notation is also <span> because the lowest you can go is y = -4. The highest you can go is y = 4</span>
Looking at the graph, the smallest x can be is -4. The largest x can be is 4. So the domain in interval notation is
Similarly the range in interval notation is also <span>
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Answer:
B
Step-by-step explanation:
To find the constant of proportionality between y and x, divide for all given values of the chart. If you get the same number, then that is the constant. If they are all different numbers, then one does not exist for that function.
Using the method above, you should get:
Chart A = 2/5
Chart B = 1/5 (Correct Answer!)
Chart C = N/A
Hope this helps!