2.1 -2.4 MMR Review

Front

Which of the following is the BEST interpretation of the graph?
As sales go up, the temperature goes up.
As sales go up, the temperature goes down.
As the temperature goes up, sales go up.
As the temperature goes up, sales go down.

Back

As the temperature goes up, sales go up.

Front

Which of the following equations BEST approximates the line of best fit? Options: y = 100x + 25, y = 25x + 100, y = 2x + 100, y = -25x + 100

Back

y = 25x + 100

Front

Which of the following equations represents exponential growth? y = -12x + 19, y = 5x + 12, y = 4(0.75)^x, y = 4(3)^x

Back

y = 4(3)^x

Front

Which of the following equations represents exponential decay? y = -3x + 11, y = 4x + 8, y = 3(0.75)^x, y = 1(3)^x

Back

y = 3(0.75)^x

Front

The graph of a ___________ function is a parabola.

Back

quadratic

Front

The graph of a _________ function is a line.

Back

linear

Front

Which of the following could have a correlation coefficient (r) of 0.5?

Back

Front

Which of the following could have a correlation coefficient (r) of -0.9?

Back

Front

Which of the following likely has a correlation coefficient (r) of 0?

Back

Front

A population of bacteria triples every hour. Which of the following could represent the number of bacteria, y, after x hours? y = x + 3, y = 3x + 500, y = 3(500)^x, y = 500(3)^x

Back

y = 500(3)^x