You can use two method
First method: form a triangle from x = 4 to x = 7. See vertically and horizontally (count the squares). It would be 5 and 3. Therefore 5/3 would be the slope.
Second method: use the slope formula
Determine 2 points on the graph
(4,0) and (7,5)
Formula: (y2-y1)/(x2-x1)
(5-0)/(7-4) = 5/3
The slope is 5/3
Answer:
8 points: unlikely
16 points: impossible
more than 0 points: likely
Step-by-step explanation:
Per hour, he snores 3 times per hour since he snores once every 20 minutes. In 3 hours, there are 180 minutes, so 180/20 = 9. The dog snores 9 times in 3 hours.
The formula for the number of combinations of choosing "r" objects from a larger set of "n" is
combinations = n! / r! * (n - r)!
we know combinations = 35 and r = 3 so we have to solve for "n"
35 = n! / 3! * (n -3)!
n = 7 colors were available