Mark has 9. Chole has 2. Altogether, they have 11. Chole had 6, but gave away 4, leaving her with 2. Mark gets 4 apples to add to his 5, giving him 9.
Answer:
13.2
Step-by-step explanation:
11/5=x/6
66/5=×
13.2
49. $30.00 - $14.78 = $15.22 in change
50. 6.20 ft - 5.34 ft = .86 ft taller
51. 5.4 + 3.05(2) - 1.39 = 10.11 lbs
Which relation is a function? A. {(8,3), (-1,-1), (8,7), (-1,7)} B. {(1,6), (2,-3), (2,7), (3,7)} C. {(-3,6), (-3,9), (-1,4), (0
frez [133]
A. Not a function since x = 8 repeats. We have x = 8 pair up with y = 3 and y = 7 at the same time.
B. Not a function for similar reasons. Now x = 2 repeats. We have x = 2 pair up with y = -3 and y = 7
C. Not a function. We have x = -3 pair up with both y = 6 and y = 9 at the same time.
D. This is a function. Each x value is listed once and only once. Any input (x) leads to exactly one output (y). For choices A through C, it is possible to draw a vertical line through more than one point, thereby failing the vertical line test. In choice D, it is not possible to draw a vertical line through more than one point of this list. So this relation passes the vertical line test.
Answer: Choice D
