Unit Test

Question 1

Which functions represent exponential growth?

Revolt · Accepted Answer

y = h(x); y = k(x)

Question 2

Which functions have a horizontal asymptote?

Revolt · Accepted Answer

y = f(x); y = h(x); y = g(x); y = k(x)

Question 3

Which shows the domain and range of these functions?

Revolt · Accepted Answer

Domain: Range:

Question 4

When b > 1, as x grows in the negative direction, y . When 0 < b < 1, as x grows in the negative direction, y .

Revolt · Accepted Answer

decreases

Question 5

When b > 1, as x grows in the negative direction, y . When 0 < b < 1, as x grows in the negative direction, y .

Revolt · Accepted Answer

increases

Question 6

Which function represents a horizontal compression of an exponential function?

Revolt · Accepted Answer

y = 23x

Question 7

Explore transformations of the basic exponential function , shown right. First, change the slider for h to positive values such as 1, 2, or 3. The curve shifts h units

Revolt · Accepted Answer

right.

Question 8

If h is instead negative, the curve shifts

Revolt · Accepted Answer

left.

Question 9

The parent function y = 0.5x is across its domain because its base, b, is such that .

Revolt · Accepted Answer

decreasing

Question 10

The parent function y = 0.5x is across its domain because its base, b, is such that .

Revolt · Accepted Answer

0 < b < 1

Unit Test Answers

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