11. The equation T = 0.63s + 78 can be used to determine T, the temperature in degrees, inside an oven s seconds after the oven is turned on. Which statement relative to this equation is true?
A) Each second the temperature increases by 78 degrees.
B) Each second the temperature increases by 63 degrees.
C) The temperature inside the oven increases by 63 degrees every 78 seconds.
D) The temperature inside the oven increased by 78 degrees every 64 seconds.
13. What does a correlation coefficient of r = - 0.97 generally imply about the graph of a data set?
A) The slope is positive, and a linear model is a good fit for the data.
B) The slope is negative, and a linear model is a good fit for the data.
C) The slope is positive, and a linear model is NOT a good fit for the data.
D) The slope is negative, and a linear model is NOT a good fit for the data.
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