Is x2 25 − y2 a function?
Is x2 25 − y2 a function?
Drawing a vertical line down the middle of the circle (or through any part besides where x=±5), you will see that this intersects it in two places, so there is a point which has two images for the same element in the domain. Therefore this is not a function.
What is the center of the circle x2 y2 25?
The center of the circle is at (0,0) and, when x = 0, the circle points are at y=−5 and y=5 . So, the radius of the circle is r = 5.
Is x2 y2 a function?
1 Answer. x2+y2=1 does not describe a function because there exist valid values of x for which more than one value of y make the equation true.
Is x2 Y 1 a function?
1 Expert Answer This is a function because each value of x results in only one value of y.
What is a relationship that is not a function?
A relation has more than one output for at least one input. The Vertical Line Test is a test for functions. If you take your pencil and draw a straight line through any part of the graph, and the pencil hits the graph more than once, the graph is not a function.
How do you tell if a chart is a function?
How To: Given a graph, use the vertical line test to determine if the graph represents a function.
- Inspect the graph to see if any vertical line drawn would intersect the curve more than once.
- If there is any such line, the graph does not represent a function.
What is a synonym for exponential?
Similar words for exponential: numeric/numerical (adjective) other relevant words (adjective) rapid change (adjective) exponential (noun) linkdef (noun)
What is exponential growth curve?
Exponential growth is a pattern of data that shows greater increases with passing time, creating the curve of an exponential function.
How do I calculate growth rate?
How to calculate growth rate using the growth rate formula? The basic growth rate formula takes the current value and subtracts that from the previous value. Then, this difference is divided by the previous value and multiplied by 100 to get a percentage representation of the growth rate.
How do you calculate decay factor?
Remember that the decay/growth rate must be in decimal form. A half-life, the amount of time it takes to deplete half the original amount, infers decay. In this case b will be a decay factor. The decay factor is b = 1 – r.