since we are looking at minutes per mile
45 min/8 miles = 5.625 minutes per mile
Letter c is the equation graph
Step-by-step explanation:
From year 1 to year 2, the plant grew 1.5cm in the one year span.
However from year 4 to year 5, the plant grew 6cm in the same one year span.
This tells you that a linear model would not be appropriate for the data (fluctuating changes in the same time span)
Rather, a quadratic or exponential model would best fit the data. (C)
Answer: 
Step-by-step explanation:
You must add 2 to both sides of the equation:

You can find the discriminant of the quadratic equation given in the problem with the formula shown below:

Based on the given equation, you have that:

Susbstitute values. Then you obtain:
