Need on this math question ! 17. which relation is not a function? a. {(–7,2), (3,11), (0,11), (13,11)} b. {(7, 11), (11, 13), (–7, 13), (13, 11)} c. {(7,7), (11, 11), (13, 13), (0,0)} d. {(7, 11), (0,5), (11, 7), (7,13)}

The correct answer option is: D. {(7, 11), (0,5), (11, 7), (7,13)}.

Step-by-step explanation:

We are given some paired values of inputs and outputs (x and y) for a function and we are to determine whether which of them is not a function.

For a relation to be function, no value of x should be repeated. It means that for each value of y, there should be a unique value of x (input).

In option D, two of the pairs have same value of x. Therefore, it is not a function.

{(7, 11), (0,5), (11, 7), (7,13)}

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

47

step-by-step explanation: