Will give points for brainliest the ordered pairs model an exponential decay function. {(−1,30), (0,21), (1,14.7), (2,10.2 9)} what is the function equation?

y = 21·0.7^x

The pair (0, 21) tells you the multiplier is 21. (The exponential factor is 1 for x=0.)

Any adjacent pair of y-values can tell you the common ratio, hence the base of the exponential term. For example, using the y-values associated with x=0 and x=1, we find the base to be ...

... 14.7/21 = 0.7

Then the equation is ...

... y = multiplier · base^x

... y = 21·0.7^x

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step-by-step explanation:

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these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation: