Answer:
C. $6 per hour.
Step-by-step explanation:
Pick a convenient point on the graph. The rate of change is the
y coordinate / x coordinate.
So we pick the point near the top right corner where y = 30 and x = 5 which gives us the answer 30/5 = 6.
The rate of change shown in the graph is option B that is $3 per hour.
The rate of change in a line is the difference between vertical values divided by horizontal values. It is also known as slope. It can be calculated as under:
Rate of change= y2-y1/x2-x1
To calculate the rate of change we need to first select two points which are in the given graph are (0,0) and (1,3)
Rate of change is equal to (3-0)/(1-0)
=3/1
means $ 3 is paid for 1 hour.
Hence the rate of change in the given graph is $3 per hour.
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