ANSWER

EXPLANATION
When a die is tossed, the possible outcomes are
S={1,2,3,4,5,6}.

The event of getting a number less than 5 is
E={1,2,3,4}



Step-by-step explanation:
the filled in circles are for anything less than or equal to or greater than or equal to.
Basically that’s all it is to find the linear equation it’s that or y=mx+b either way you’ll find the slope
Answer:
D
Step-by-step explanation:
They all move 1 unit up.
The mapping notation essentially tells you, what you do to each point to get the image point.
In this case (x,y)→(x,y+1) is telling you, for any given coordinate on the original, you add 1 to its y coordinate. Adding 1 to a y coordinate moves it up one unit.