Straight-line graphs: "James plots the points A (5,7), B (1,-1), C (13,4) and D (3,-2). He claims he can draw a line perpendicular to AB that passes through the midpoint of both AB and CD.
Is he correct? Explain your answer."
I know this is correct but need help on how to explain, please!

Find the missing number. a. 3 : 24 = : 72 b. : 18 = 5 : 9 c. 6: = 36 : 36

What is the domain and range of each function 1. x (3, 5, 7, 8, 11) y ( 6, 7, 7, 9, 14) 2. x (-3, -1, 2, 5, 7) y (9, 5, 4, -5, -7)

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.