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Mathematics
9th
grade
Exponents and Exponential Functions Test Review
20 questions
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- 1. Multiple ChoiceAgnes purchases a ring for $200 and it depreciates 6% per year from the date of purchase. Which function models the value V(t) of the ring?V(t)=200(1.6)tV(t)=1.06x+200V(t)=200(.06)tV(t)=200(.94)t
- 2. Multiple ChoiceWhich option is exponential growth?Option 1Option 2
- 3. Multiple ChoiceThe equation y = 75(1.2)x describes the number of staff since 1998.
What 'x' would you use if you wanted to calculate the number of staff in 2005?x = 2005x = 7x = 5x = 1998 - 4. Multiple ChoiceUSE THE CALCULATOR:
The equation y = 75(1.2)x describes the number of staff since 1998.
What is an approximate number of staff in the year 2005?269187 - 5. Multiple ChoiceWhich equation shows
"The cell population of 200 is growing by 20 percent each hour"?P(h) = 200 (.20)hP(h) = 200 (20)hP(h) = 200 (1.20)hP(h) = 200 (.80)h - 6. Multiple ChoiceWhich equation shows
"The cell population of 200 is reducing by 20 percent each hour"?P(h) = 200 (.20)hP(h) = 200 (20)hP(h) = 200 (1.20)hP(h) = 200 (.80)h - 7. Multiple ChoiceThe value of an investment is modeled by the function y = 125 (1.4)x. Which statement is trueThe value of the investment will increase over timeThe value of the investment will decrease over timeThe value of the investment will remain the same
- 8. Multiple ChoiceSimplify (7x4)(9x3)16x1216 x763x4+3 = 63x763x4*3 = 63x12
- 9. Multiple ChoiceHow would you change this to a positive exponent:
1/x-31/x3x33x1/3x - 10. Multiple ChoiceWhat should you do with the exponents in order to simplify this expression?
(c5)(c3)(c3)Subtract themMultiply themAdd themDivide them - 11. Multiple ChoiceSimplify
(c5)(c3)(c-3)c53c11c113c45 - 12. Multiple ChoiceSimplify:ABCD
- 13. Multiple ChoiceSimplify
(2xy5)(-3x2y7)-6x2y12-1x2y12-5x2y35-6x3y12 - 14. Multiple ChoiceSimplify.y-41/y16y-16y4
- 15. Multiple Choiceabcd
- 16. Multiple ChoiceRewrite in Exponential Form.ABCD
- 17. Multiple ChoiceWrite the product using an exponent.
14 x 14214142141414 - 18. Multiple ChoiceSimplify
10x2y0110x2y10x2x2 - 19. Multiple ChoiceWhen is this your Exponents and Exponential Functions testTuesdayMondayNext WednesdayTomorrow
- 20. Multiple ChoiceFind the equivalent expression.
(-9)(-9)(-9)(-9)(-9)-95(-9)5-9 x 5-9 + -9 + -9 + -9+ -9 - Answer choicesTagsAnswer choicesTags