Which of the following exponential regression equations best fits the data shown below?
x −4 −3 −2 −1 0 1 2 3 4
y 0.05 0.20 0.75 2.25 10 30 100 350 1250
a.
y = 5.32 • 2.23x
b.
y = 3.14 • 4.98x
c.
y = 10.84 • 1.77x
d.
y = 8.46 • 3.51x