7x +2y =-17 ..... Finally, answer
2x + 3y = -5
+
5x -y = -12
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7x +2y = -17
Answer:
30
Step-by-step explanation:
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Answer:
wer here. Link below!
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bit.
Step-by-step explanation:
Answer: exponential decay (choice B)
The variable x in the exponent tells us that this is an exponential function. The fact that the base 1/2 = 0.5 is between 0 and 1 indicates that the value of y will decay or get smaller as x increases. Visually, it graphs out a curve that goes downhill as you read from left to right.
side note: The function f(x) = 7*(1/2)^x can be written as y = 7*(0.5)^x. It has a horizontal asymptote of y = 0 meaning that the curve will get closer and closer to the x axis, but never actually touch it.
