What is it about the equation y = 2(9/7)x that indicates that it is a model for exponential growth?
Exponential Functions What Does the Growth Factor Indicate?

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The equation is growth because 2 is positive.
The equation is growth because the factor is positive.
The equation is growth because the factor is greater than one.
The equation is growth because the exponent is always positive.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the equation y=200(1.08)x which models the increase in value of an autographed Annie program. Let y = the value of the item, let x = the number of years since the performance. What does the 1.08 in the equation indicate?
The value of the item is increasing by $1.08 each year.
The value of the item is increasing by 1.08% each year.
The value of the item will increase to $200 1.08 years after purchase.
The value of the item is increasing by 8% each year.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If you were asked to write an exponential function with an asymptote of y = - 2, what must you include in your equation?
Subtract 2 from any exponential expression. Ex. y = (4)x - 2
Add 2 to any exponential expression. Ex. y = (4)x + 2
Raise the expression to the power of -2. Ex. y = x -2
Subtract .02 from 1 to get a decay factor. Ex. y = (1 - .02)x
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A population of mutant venus fly trap plants are taking over an island in the South Pacific, capturing everything from insects to small rodents. When they were first discovered they covered 4 square kilometers. As the population grows, the plants spread and cover more land. Use the table to write an equation.
y=4(4)x
y=4(2.68)x
y=4(1+1.67)x
y=4(1.67)x
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A population of mutant venus fly trap plants are taking over an island in the South Pacific, capturing everything from insects to small rodents. When they were first discovered they covered 4 square kilometers. As the population grows, the plants spread and cover more land. How many years will it take for the plants to occupy 400 km2?
8 years
9 years
10 years
11 years
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What parts of an exponential equation could you find in a table?
The factor is found as the first difference in the table, and the value of a is where y=0.
The factor is found as the common ratio in the table, and the value of a is where y = 0.
The factor is found as the common ratio in the table, and the value of a is where y = 0.
The factor is found as the first difference in the table, and the value of a is where x=0.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the equation y = 4(1.67)x where y is the area covered by mutant venus fly trap plants and x is the number of years since they were discovered. Which of the following statements is true?
If x = 0, there are 4 square kilometers of island covered by mutant venus fly traps.
If x = 0, all the mutant venus fly trap plants have been killed by an herbicide.
If x = 0, the x-intercept of the graph of the scenario is (0 , 0)
If x = 0, there are 1.67 square kilometers covered by mutant venus fly trap plants.
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