21
QuizMultiple Choice
Unit Test
Question 21 of 25 • PA-Algebra I A
Which exponential function has an initial value of 2?
Answer
A
f(x) = 2(3x)B
On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It crosses the y-axis at (0, 0.5) and goes through (2, 2).
C
f(x) = 3(2x)D
A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f (x) with entries one-eighth, one-fourth, one-half, 1, 2.