The point (-1,8) is on a line that has a slope of -3. Is the point (4, -7) on the same line?

Yes, the point is on the same line.

Step-by-step explanation:

You know that y goes down -3 for every 1 that x moves (just rise/run)

So to get from (-1,8) to (4,-7) you will have to add 5 to the x (-1+5 = 4)

and since you are moving over 5 along the x, you have to move 5(-3) = = -15 units on the y axis. (-1+5) = 4 and (8-15) = -7.

Hopefully this makes sense.

step-by-step explanation:

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: