Wendy is logging the number of video game levels she wins per hour. She has determined the function to be f(x) = 6x + 9, where x
represents hours and f(x) represents the number of video game levels won. Which of the following options describes the restrictions to the domain and range correctly?
A) Domain, nonnegative values; range, values greater than −1.5
B) Domain, nonnegative values; range, values less than −1.5
C) Domain, nonnegative values; range, values greater than or equal to 9
D)Domain, nonnegative values; range, values less than or equal to 9
A) Domain, nonnegative values; range, values greater than −1.5
B) Domain, nonnegative values; range, values less than −1.5
C) Domain, nonnegative values; range, values greater than or equal to 9
D)Domain, nonnegative values; range, values less than or equal to 9
2 answers:
Let
x--------> represents hours
f(x)------> represents the number of video game levels won
we know that
this is the equation of a line
The slope m is equal to
the domain is the interval-----------> [0, ∞)
the range is the interval--------> [9, ∞)
using a graph tool see the attached figure
therefore
<u>the answer is the option</u>
C) Domain, nonnegative values; range, values greater than or equal to 9
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