The answer to the question is C
<span>A scale factor is a number which scales, or multiplies, some quantity. The ratio of
any two corresponding lengths in two similar geometric figures is also
called a scale factor.
Given a function
which is formed from the parent function

The function
</span><span>

was obtained from the parent function by multiplying the parent function by 3.
Therefore, the scale factor of the function </span><span>

is 3.</span>
Answer:
a. C(x) = $16, if 0 ≤ x ≤ 10
C(x) = 2x - 4 if x > 10
b. Independent: Number of DVD rentals
Dependent: Monthly cost of rentals
c. $26
Step-by-step explanation:
a. The cost (C) of renting 'x' DVDs is given by:
If 10 ≤ x ≤ 10
C(x) = $16
If x > 10
C(x) = 16 + 2(x-10)
C(x) = 2x - 4
b. Since the cost depends on the number of DVD rentals, cost is the dependent variable and number of DVD rentals is the independent variable.
c. For x = 15:
C(15) = 2*15 - 4
C(15) = $26
It costs $26 to tent 15 DVDs in one month
Answer:
A. 1.609344 km
B. 0.62137119 m
Step-by-step explanation: