1) A town has a population of 5000 and grows at 2% every year. What is the exponential function that represents this? a) y=5000(1+0.02)x b) y=5000(1+2)x c) y=5000(1-0.02)x d) y=5000(1+0.2)x e) y=5000(1-2)x f) y=5000(1-0.2)x 2) A town has a population of 17000 and grows at 3% every year. What is the exponential function that represents this? a) y=17000(1+3)x b) y=17000(1+0.3)x c) y=17000(1+0.03)x d) y=17000(1.03)x e) y=17000(4)x f) y=17000(1.3)x 3) An element with mass 430 grams decays by 27.4% per minute. What is the exponential function that represents this? a) y=430(1-27.4)x b) y=430(1+27.4)x c) y=430(1-2.74)x d) y=430(1+2.74)x e) y=430(1-0.274)x f) y=430(1+0.274)x 4) A new car is purchased for 19900 dollars. The value of the car depreciates at 7% per year.  What is the exponential function that represents this? a) y=19900(1-7)x b) y=19900(1-0.7)x c) y=19900(1-0.07)x d) y=19900(-6)x e) y=19900(0.3)x f) y=19900(0.93)x 5) Which is the standard form for exponential functions? a) y=abx b) y=mx+b c) y=√x d) y=ax2+bx+c e) y=a/b f) y=a(x+b)

Writing Exponential Functions

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