Which of the following expressions represents a function?
2 answers:
Answer:
y = 4x − 1
Step-by-step explanation:
∵ A relation is called function if each input value has a different or unique output value,
In the line x = 1,
There are infinite output values for the input value of 1,
So, x = 1 is not a function,
In the relation {(3, 2), (3, –2), (4, 5), (4, –5)},
3 has two output values 2 and - 2,
Thus, {(3, 2), (3, –2), (4, 5), (4, –5)} is not a function,
In line y = 4x - 1,
For each value of x there is a different value of y,
So, y = 4x - 1 is a function,
In the circle, ,
For 2 values of x there is one value of y,
eg : for x = 2 and x = -2,
y = 0,
So, is not a function.
You might be interested in
Adding parentheses in the component of the expression may bring an output of 48.
In this question we should make use of hierarchy rules represented by the use of parentheses. The parentheses oblige to make operations inside it before making it in the rest of the formula.
Now we decide to add parenthesis in the component such that the result of the entire expression is 48. We proceed to present the proof:
Adding parentheses in the component of the expression may bring an output of 48.
The statement presents mistakes and is poorly formatted. Correct form is shown below:
An expression is shown:
Using the same expression, add parenthesis so that the value of the expression is 48.
To learn more on hierarchy rule, we kindly invite to check this verified question: brainly.com/question/3572440