What is the domain of 5x 7?
all real numbers
In the expression f(x) = 5x – 7, the domain is all real numbers.
Is 5x 1 a function?
It is a linear function. You will get a straight line. (0, 1) is one point.
What is the domain of y =- 5x 7?
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
What is the range for Y 5x?
+∞
The values are all positive (if a positive number is raised to a power, the result cannot be negative), andthe value cannot be zero, so the range is (0;+∞) .
Is y 7 a function?
Yes, y=7 is the equation of a line. The line has a y-value of 7 no matter what x-value is given. Therefore, this is the equation of a horizontal line.
How will we know that a given graph of a one to one function?
A graph of a function can also be used to determine whether a function is one-to-one using the horizontal line test: If each horizontal line crosses the graph of a function at no more than one point, then the function is one-to-one.
How do you identify the domain and range of a function?
To find the domain and range, we simply solve the equation y = f(x) to determine the values of the independent variable x and obtain the domain. To calculate the range of the function, we simply express x as x=g(y) and then find the domain of g(y).
Is Y 7 a function?
Yes, y=7 is the equation of a line. The line has a y-value of 7 no matter what x-value is given.
How can you tell a function is one to one?
If the graph of a function f is known, it is easy to determine if the function is 1 -to- 1 . Use the Horizontal Line Test. If no horizontal line intersects the graph of the function f in more than one point, then the function is 1 -to- 1 .
How can you tell a function is one-to-one?
What is an example of a one-to-one function?
A one-to-one function is a function of which the answers never repeat. For example, the function f(x) = x + 1 is a one-to-one function because it produces a different answer for every input. An easy way to test whether a function is one-to-one or not is to apply the horizontal line test to its graph.
