7. In the function, f(x) = 2*, 2 is called
a. constant
c. coefficient
d. base
b. variable power
8.
Which of the following is an application of exponential function?
a. monthly salary
C. radioactive decay
b. shooting a cannon
d. distance travelled
9. In exponential function, when the exponent is equal to zero the function has a value equal to
C. -1
a 0
d. imaginary number
b. 1
10. The function f(x) = 3* is a decreasing function. The function f(x) = 3* is
function.
a. increasing
c. either increasing or decreasing
b. decreasing
d. slanting
11. In the function f(x) = 4x, the x-axis becomes the asymptote of the graph at
a.x=0
c. x < 0
b.x>
d.x= 1
12. The domain of the function f(x) = 2x-1 is the set of
a. negative real numbers
c. zero
b. positive real numbers
d. real numbers
13. The exponential function f(x) = 2(10) ** is an example of
a. decay
c. growth
b. progress
d. stagnant
1
14. In the function f(x) = 2(1.5)*, find f(x) if x = -1,0, 1.
a. f(x) = 0.22, 0.33, 0.5
c. f(x) = 0.22, 0.5, 1.125
b. f(x) = 0.5, 0.75, 1.125
d. f(x) = 0.33, 0.5, 0.75
15. The annual sales at a company are $100,000.00 in the year 2020 and increasing at the rate of 4% per year. What is its total
amount after 10 years?
a. P136,856.91
c. P148,024.43
b. P153,945.41
d. P142,331.18
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Answer:
7.c 8.a 9.d 10.c 11.b 12.a 13d 14.b 15.c