Let f(x) = 2x, g(x) = 2x^2 – x, and h(x) = 3x. Lola finds the composition [f o g o h](x) as shown below. What error did Lola mak
e?
= 2[2(3x)^2 – 3x]
= 2[2(9x^2) – 3x]
= 2(18x^2 – 3x)
= 36x^2 – 3x
= 2[2(3x)^2 – 3x]
= 2[2(9x^2) – 3x]
= 2(18x^2 – 3x)
= 36x^2 – 3x
1 answer:
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Answer:
Part a. The graph does not model a proportional relationship.
Part b. The values in table model a proportional relation.
3.5 minutes per mile.
Step-by-step explanation:
Part a.
The graph shown in the question representing Janet's data is not a straight line although it passes through the origin.
That is why the rate of change of distance with time is not constant.
Therefore, the graph does not model a proportional relationship.
Part b.
If we plot the data in the table using distance in miles along the y-axis and time in minutes along the x-axis, then we will get a straight line passing through the origin.
So, the values in the table model a proportional relation.
Now, Tarik's unit rate in minutes per miles will be minutes per mile. (Answer)
