Answer:
During the interval 0 < x < 2, height of the water balloon is increasing.
Step-by-step explanation:
Graph of the linear function represents the height f(x) of a balloon over the time 'x' seconds.
There are three intervals of the time in which height of the balloon has been given.
1). In the interval of 0 < x ≤ 2, height of the water balloon is increasing (Since slope of the line is positive or the line is slanting upwards).
2). In the interval 2 < x ≤ 3, height of the water balloon is constant (Since slope of the line is zero).
3). In the interval 3 < x ≤ 4, height of the water balloon is decreasing faster. (Since the given line is slanting downwards).
4). In the interval 4 < x < 6, height of the water balloon is decreasing (Since the given line in this interval is slanting downwards).
Therefore, during 0 < x < 2, height of the water balloon is increasing.
All the answer is is you are multiplying by 10 everytime.
9 18 36
9 * 2 18 * 2
so notice, to get the next term, we simply multiply the "current" one by 2, namely is a geometric sequence, with a "common ratio" of 2, and we know the first term's value is 9.
