Given the function f(x)=2x+5, f(2)=9. True
False

Select all relations that are functions.

{(3,2), (5,8), (2,-2)}

{(4,-2),(4,-3),(4,6)}

{(-1,2),(-2,2),(-3,2),(-4,2)}

{(-7,5),(6,-3),(5,8)}

1) true  

Step-by-step explanation:

all i could figure out, i dont understand #2

true

explanation:

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3