3 years ago

Write an exponential function y=an^x for a graph that includes (-4,72) and (-2,18)

2 answers:

8 0

Answer: 1/2

Step-by-step explanation: hope u got it right

Eddi Din [679]3 years ago

4 0

18/72=(ar^-2)/(ar^-4)

1/4=r^2

r=(1/4)^(1/2)

r=1/2

18=a(1/2)^-2

18=4a

9/2=a

y=(9/2)(1/2)^x

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