Exponential growth/decay vs Linear SAT Prep

Question 1

Which function can be used to find the number of salamanders left at the end of n years?

Accepted Answer

f(n) = 50,000(0.97)n

Question 2

Which exponential function represents the relationship shown in the table?

Accepted Answer

g(x) = 4(0.25)x, g(x) = 4(¼)x

Question 3

Which function can be used to find the number of bacteria present at the end of h hours?

Accepted Answer

f(h) = (1,000)(1.2)h

Question 4

Which function represents a $2,000 investment with annual losses of 1% on the investment?

Accepted Answer

f(x) = 2,000( 0.99 )x

Question 5

Which exponential function represents the relationship shown in the table?

Accepted Answer

f(x) = 3(2)x

Question 6

Which function represents a $5,000 investment with an annual return of 4% on the investment?

Accepted Answer

f(x) = 5,000( 1.04 )x

Question 7

Which equation represents the how tall the tree is after x years?

Accepted Answer

y = 8x + 16

Question 8

In the function f(x) = abx what does the variable a represent?

Accepted Answer

a is the initial value

Question 9

Quincy has $500 in his account. He plans on saving $45 per month. Which equation represents his savings after x months?

Accepted Answer

y = 45x + 500

Question 10

In the function f(x) = abx which choice best describes the relationship when b > 1 ?

Accepted Answer

exponential GROWTH

Questions 10