The diagram below shows the speed - time graph of the motion of an athlete during a race.
Speed
la ms
14
12
10
8
6
4
2
12
13
9 10
4
6
5
7 8
2
0 1
Time la seconds
(a) Using the graph determine,
(i) the MAXIMUM speed
(ii) the number of seconds for which the speed was constant
(iii) the TOTAL distance covered by the athlete during the race.
(b) During which time period of the race was,
(i) the speed of the athlete increasing
(ii) the speed of the athlete decreasing
(iii) the acceleration of the athlete zero?​

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1