Answer:
Y-intercept
Step-by-step explanation:
Answer:


Step-by-step explanation:
Given
See attachment for graph
Solving (a): Increasing interval
To do this, we simply identify the interval at which the value of the graph increases.
The value has an increased interval between -2 and 1.5 (of the x-axis).
Hence, the increasing interval is:

Solving (b): Decreasing interval
To do this, we simply identify the interval at which the value of the graph decreases.
The value has decreased intervals between - infinity and -2 and also 1.5 and infinity (of the x-axis).
Hence, the decreasing interval is:

4meters in 5sec
Hope this helped
Answer:
At the 4 month, the cost will be the same
Step-by-step explanation:
suppose x is the number of month.
Plan A= 40+20x
Plan B= 30x
Both plans cost the same;
40+20x =30 x
40=30x-20x
40/10=x
4=x
At the 4 month, the cost will be the same.