Only the first one is a function
functions can’t have more than one of the same x value
Answer:
10p
Step-by-step explanation:
The lines are parallel because the x is the same
Answer:
25.8
Step-by-step explanation:
We use the segment of secants theorem to find x. The theorem states that the product of the lengths of one secant segment and its external segment equals the product of the lengths of the other secant segment and its external segment. That means (a+b)b=(c+d)d. Then we simply plug in the numbers: (x+5)5=(15+7)7. Then solve for x by simplifying (x+5)5= 154, divide by 5 on both sides, x+5= 30.8, and subtract 5 from both sides, x= 25.8.
