Answer:
3 is a function.
1 and 2 are not.
Step-by-step explanation:
1 and 2 are not functions because we can draw a vertical line which passes through more than one point on the graphs.
You cant do this on graph 3 so it is a function.
Answer:
17÷ 20 is the probability that the first is blue and the second is green
Answer:
y = ( 5 / 9 )x + 30
Step-by-step explanation:
y - y1 = m ( x - x1 )
m = 5 / 9
y - ( 5 ) = ( 5 / 9 ) [ x - ( - 45 ) ]
y - 5 = 5 / 9 ( x + 45 )
y - 5 = ( 5 / 9 )x + 25
y = ( 5 / 9 )x + 30
